Diwali with your pet: the week before, the three nights, and the day after

What Diwali looks like from your pet's side

From your pet's side, Diwali is not one frightening night. It is roughly ten days in which nothing in the household happens at its usual time, and that is the part the evidence says matters.

The feline stress literature names the mechanism directly. One of the main psychological factors that increase how aversive a stimulus feels is a perceived sense of unpredictability and lack of control, and in the domestic environment both changes in the husbandry routine and inconsistency in the owner's reactions can cause chronic stress. International Cat Care puts the same point as advice rather than a finding, stating that being predictable in your behaviour and creating daily routines is a great way to minimise stress.

Now list what actually changes in an Indian home over those ten days. Furniture moves for cleaning. The front door opens forty times a day instead of four. Meals run late and then later. Strangers arrive, some of them children. Lamps appear at floor level. Coloured powder appears on the floor at the threshold. The street outside fills with smoke for three nights and stays dirty for three more. Your pet reads none of this as celebration.

Treat the noise as one of four problems, not the whole problem. Noise fear is real, common and separately covered in our guide to how to calm dogs during firecrackers in India, which handles the safe room, desensitisation and medication in full. This page is the rest of the festival.

The ten-day plan, dated

To run a dated plan, count backwards from Diwali day and give each block of days exactly one job, so nothing lands on the evening it matters most.

The Animal Welfare Board of India asks people to provide safe, quiet places for pets and strays, along with access to clean drinking water, to help them cope with the stress of the season. That is the outcome. The five blocks below are how you get there without doing it all on the night.

1. Day -10. Recheck the collar tag and the identification on the microchip registry, and photograph your pet from the front and the side in daylight. Our guide to pet microchipping in India covers what a registered chip does that a tag does not.
2. Day -9. Book the emergency vet number into your phone and the regular clinic's festival hours alongside it, before the queue forms. Ask now if your pet has panicked, bolted or refused food in a past season.
3. Day -8. Choose the retreat room. Pick the interior room your animal already hides in, not the room that is convenient for you, and start feeding there so it becomes ordinary.
4. Day -5. Brief every adult in the house and every person who works in it on two rules, which are that the front door is never left open and that nobody feeds the pet anything from the table.
5. Day -2. Stagger the day so the walk, the main meal and a quiet hour all finish before the first cracker, then keep pets indoors from dusk and run calming music or a fan from before the noise starts rather than after it.

Check what your own state and district have ordered for this year before you fix the walk time, because there is a dawn cracker window as well as an evening one. In the National Capital Region, the Supreme Court's order of 15 October 2025 confined firecracker use to 6:00 am to 7:00 am and 8:00 pm to 10:00 pm on the two days, being the day before Diwali and Diwali day. A Delhi dog's morning walk therefore has to finish before six or start after seven. That order is a National Capital Region direction made on a test-case basis for a stated period, not a standing national rule, so do not assume those hours apply in Maharashtra, Karnataka or Tamil Nadu.

Four tasks remain if Diwali is tomorrow and nothing above is done. Do these in order.

1. Write your phone number on the collar in marker pen, today, even if a tag is on order.
2. Clear one interior room, close its window, put the usual bed, a bowl of fresh water and a long-lasting chew in it, and leave the door open.
3. Seal the gap under the main door with a rolled towel to cut both the noise and the smoke that comes in with it.
4. Tell every person in the house, in one sentence each, what their job is at the front door tonight.

Skip the two things that look like preparation and are not. A new calming supplement bought on the afternoon of Diwali is an untested variable introduced on the worst possible evening, and a new toy produced once an animal is already frightened is simply one more unfamiliar object.

Air quality, the Diwali risk nobody writes about

Air quality is the Diwali risk nobody writes about, and unlike most festival advice it is measured, published and specific to India.

A CSIR laboratory sampled three sites in Bhavnagar, Gujarat across five days spanning Diwali 2021, at a traffic location, a residential location and a control location. On Diwali day the 24-hour mean PM10 was 380.0 micrograms per cubic metre against 74.2 the day before, which the authors describe as five to six times higher, and mean PM2.5 was 182.2 against a national 24-hour standard of 60. The recorded AQI was 348, inside the Very Poor band.

Read the control site before you decide your lane is fine. Even at the control location, away from traffic, PM10 on Diwali day reached 312.6 micrograms per cubic metre. There is no quiet corner of a city on that night, and the authors note why the timing makes it worse, because Diwali falls at the start of winter when high humidity, falling temperature, calm winds and a dropping mixing height all stop the pollutants dispersing.

The spread between Indian cities is wide, so look up your own rather than borrowing a number. Bhavnagar is a coastal Gujarat town of modest size. The Supreme Court records that after the Diwali celebrations of 2016, PM2.5 in the air had crossed about 29 times the standard laid down by the World Health Organization, and the air quality index, which in Delhi generally hovers around 500, crossed 700 immediately after Diwali. Whether you live in Delhi, Mumbai, Kolkata, Chennai, Bengaluru, Hyderabad, Pune or Ahmedabad, the figure that should govern your dog's walk is your own city's published index that morning, not a national headline and not last year's.

The southern and western metros have a second problem of timing. Diwali lands soon after the monsoon withdraws in Mumbai, Pune, Bengaluru and Chennai, so a flat that has stood open to the air for months has to be sealed for three nights, and a closed humid room with a diya and an incense stick burning in it becomes its own indoor air problem. Decide in advance which windows close, and keep anything that burns out of the retreat room.

Which animals the smoke reaches first

Cornell's Riney Canine Health Center names the groups at higher risk during poor air quality plainly, listing brachycephalic short-muzzled breeds such as Bulldogs, Boston Terriers and Pugs, geriatric and paediatric animals, and animals with pre-existing heart disease, asthma or other conditions affecting the heart and lungs. It also makes the point that people can wear a mask outdoors and pets cannot, which may put them at greater risk. If your dog already has brachycephalic obstructive airway syndrome, the festival week is not the time to test how it copes.

Watch for throat, nose and eye irritation leaving the eyes red or watery, coughing, gagging, a fast respiratory rate at rest, or difficulty breathing, and contact a veterinarian about any of them. An elderly cat sitting unusually still in a smoky room is not relaxed.

Where the evidence is genuinely split

The best study of household particulate matter and pets does not say what you would expect, and we publish it as it stands. Across 348 animals, 230 dogs and 118 cats, cats living in homes above 35 micrograms per cubic metre of PM2.5 were more likely to have respiratory disease, at an odds ratio of 4.13 with a 95 percent confidence interval of 1.12 to 15.27. In dogs there was no such association, and the dogs with respiratory disease actually lived in homes with a lower median PM2.5 than the controls, 30.8 against 38.2.

Two honest conclusions follow, and the second one is narrower than it looks. The indoor evidence for cats is strong enough to act on. For dogs the correct statement has two halves: household PM2.5 is not associated with whether a dog has airway disease, and it is associated with how inflamed an already-ill dog's airway is. The same Taiwanese group followed the case-control study with a prospective study of 36 animals, 20 dogs and 16 cats that already had bronchial or lung disease, measuring PM2.5 at the animal's own head height in five frequented spots of each home; dogs from homes above 35 micrograms per cubic metre had a median bronchoalveolar lavage total nucleated cell count of 622 cells per microlitre, range 147 to 1407, against 344, range 175 to 591, in the cleaner homes, p = 0.023. The authors conclude that poor indoor air quality may exacerbate airway disease in pets. Our guide to air pollution and your pet publishes both papers side by side. None of that licenses a brand page telling you flatly that Diwali smoke damages a healthy dog's lungs, and none of it licenses assuming a dog that already coughs is unaffected.

What India's air quality index does not tell you about your dog

India's National Air Quality Index runs in six bands and publishes a health impact line for each one. The Very Poor band, 301 to 400, corresponds to 24-hour PM2.5 of 121 to 250 micrograms per cubic metre and carries the note that it may cause respiratory illness to the people on prolonged exposure, with the effect more pronounced in people with lung and heart diseases. Every one of those impact lines is written about people. No Indian authority publishes an animal equivalent.

So read the human scale and apply the veterinary risk factors to it yourself. If the published AQI is in the Poor band or worse, treat a brachycephalic, elderly or heart-and-lung-compromised animal the way the scale treats a person with lung disease, and shorten outdoor exposure accordingly.

• Keep pets indoors through the hazardous hours and limit outdoor time to toilet breaks, which is Cornell's advice for a poor air quality alert.
• Close windows and doors on the nights themselves, and ventilate the room in the clearest part of the morning instead.
• Avoid running or long walks until the air improves, and replace them with indoor enrichment such as puzzle feeders and long-lasting treats.
• Consider an indoor air purifier or filter for the retreat room, which Cornell lists as an option rather than a requirement.
• Do not add incense or a smoky lamp to a room an animal is shut into, because indoor sources stack on top of what is already coming in from the street.

Guests, the front door, and who opens it

Guests arrive at the front door, and the front door is how most festival pets are lost, so decide who owns it before the first visitor rings the bell.

The American Veterinary Medical Association states the risk in one line. Watch the exits, because while you are welcoming hungry guests and collecting coats, a four-legged family member may make a break for it out the door and become lost. The AVMA adds that this applies even to pets that are comfortable around visitors. A dog that has never once run out of your gate is a different animal when a cracker goes off behind the person holding the gate open.

Give the animal a safe space of its own before the guests and visitors arrive. The AVMA's wording is that all pets should have access to a comfortable, quiet place indoors if they want to retreat, in a room or crate somewhere away from the commotion, where your guests will not follow, that the pet can go to any time it wants to get away. A pet that is particularly upset by houseguests is a reason to speak to a veterinarian, which the AVMA calls a common problem rather than an unusual one.

• Brief every guest at the door, in one sentence, on the two things they must not do, which are opening the gate without looking down and feeding the pet anything.
• Supervise every interaction between a guest's children and your animal, and never let a child hold a dog while crackers are being lit nearby.
• Decline politely when a guest asks to bring their own pet and you do not know how the two will get along, which the AVMA lists as a legitimate option.
• Clear food from the table, the counters and the serving areas as soon as people finish, and put the rubbish where the pet cannot reach it.
• Confine a nervous animal to the retreat room with a favourite toy for the busiest two hours rather than asking it to cope with the room.

Mithai is its own hazard and has its own page. Keep sweets, dry fruit boxes and gift hampers off floor level and out of reach for the whole festival week, and see Diwali sweets and your dog for what is actually toxic and what is merely too rich. If an animal does get out, our guide to how to find a lost pet in India sets out the first hour.

Rangoli powders and decorations underfoot

Rangoli powder sits at paw height on the floor by your threshold for a week, which makes it the one decoration your animal walks through every single time it goes out.

India's own animal welfare regulator has already taken a position on this. The Animal Welfare Board of India requests that people use natural plant-based colours for creating rangolis, to avoid any harmful chemicals often found in synthetic alternatives. The same advisory asks for eco-friendly alternatives for lighting diyas and for Panchagavya products made from cow dung and natural materials.

What nobody has measured is the rangoli powder itself. The nearest measured proxy is the dry colour powder sold for Holi, which is the same category of unregulated market powder. Across 200 samples collected from 40 locations in and around Kolkata, lead was present at 25 to 42 mg/kg, roughly twice the cosmetic reference limit the authors used, with the yellow pigment highest. The authors note that the majority of colouring agents used are synthetic dyes intended for non-food commodities such as textile, paper and leather.

Treat that as a signal, not a measurement of your rangoli. Holi colour is not rangoli powder, the study tested a different product sold in a different season, and we have found no published analysis of rangoli powder in India at all. What the two share is that neither is manufactured to a food or cosmetic standard, and your pet licks its feet.

Watch the decorations at floor level

• Lay rangoli where the animal does not have to cross it, or use plant-based colour, or use flowers and rice flour instead.
• Wipe paws after any crossing, before the animal has a chance to groom.
• Keep electric lights, extension boards and trailing cords out of reach, because a chewed cord causes burns.
• Keep small, swallowable decorations off low tables and floors, since the AVMA lists intestinal blockage and choking as the usual outcomes.
• Place marigold torans and paper lanterns above nose height rather than at tail height.

Open flames are the one festive hazard with its own dedicated page. The AVMA's rule is that you never leave a pet alone in an area with a lit candle or lamp, because it could result in a fire. Lamps at floor level, singed tails and oil burns are covered in diyas, candles and burn risk to pets.

Routine, sleep and feeding through the festival week

Hold the household routine through the festival week, because predictability is the one protective factor the feline and canine stress literature agrees on.

The finding behind that instruction is not soft. Unpredictability and lack of control are among the main psychological factors that make a stimulus more aversive, and changes to the husbandry routine are named as a cause of chronic stress in the domestic environment. International Cat Care reaches the same place from the practical side, advising owners that being predictable in their behaviour and creating daily routines is a great way to minimise stress.

So the instruction is not to cancel Diwali. It is to keep three fixed points, the morning walk, the main meal and bedtime, inside a week in which everything else moves. An unpredictable week is harder on an animal than a loud one, and the two arrive together.

• Shift early walks earlier rather than cancelling them, so the dog gets its exercise in daylight before the first cracker and before the air is at its worst.
• Feed at the usual clock time even when the family eats at midnight, and do not be alarmed by a refused meal during the noisiest nights.
• Keep hydration constant by leaving fresh water in the retreat room as well as in the usual place, which is exactly what the AWBI asks households to provide for pets and strays through the season.
• Protect sleep by giving the animal somewhere dark, enclosed and away from the living room, rather than expecting it to settle in a room where guests are still talking at two in the morning.
• Keep the diet identical all week, because a festival is the worst time to introduce anything new to a digestive system.

There is a physiological reason to take the week seriously and it comes from the regulator rather than from a brand. The AWBI records that prolonged exposure to high-decibel sound can impair animals' hearing and cause long-term stress that elevates their heart rates, weakens their immune systems and leads to digestive issues. Loose stools on day three of Diwali are not always something the animal ate.

Cats at Diwali, and why their distress is easy to miss

Cats show Diwali distress far less obviously than dogs do, so read the quiet signs instead of waiting for visible panic.

International Cat Care states the problem in one sentence. Cats do not tend to show their emotions as overtly as other species do, and often the signs are very subtle, such as withdrawing and becoming quiet. A cat that spends Diwali motionless on top of a cupboard is frequently described by its owner as having been fine.

The acute signs include freezing, shaking, a tense crouched posture, rapid breathing, a tail tucked close to the body, fully dilated pupils, ears flattened back, whiskers drawn back, drooling and nose licking, passing urine or faeces involuntarily, and attempts to escape. Over a longer disruption the picture changes to not eating or grooming as normal, hiding, resting more, a heightened startle response, over-grooming, soiling indoors and urine spraying indoors.

The household environment itself is a listed stressor. Being confined indoors, being bored, having restricted access to hiding places where the cat feels safe, or not having enough clean litter trays can all be very stressful. Diwali does all four at once to an indoor cat, which is why the resource rule matters more this week than any other.

The resource count that solves most of it

Provide one of each resource per cat plus one extra, positioned in different locations, which is the formula International Cat Care publishes for food bowls, water bowls, litter trays, beds, hiding places, high perches, scratching posts and toys. In practice, for one cat during Diwali, that means two litter trays rather than one, two water bowls and at least two hiding places, including one high up, because a cat that will not cross a room full of guests to reach the only tray will hold on or soil indoors.

• Bring an outdoor cat in before dusk on each of the loud nights and keep it in.
• Confine a cat to one quiet interior room with everything it needs, rather than letting it bolt to a balcony or a stairwell.
• Leave hiding places open and never pull a hiding cat out, because hiding is how the animal is coping.
• Check balcony grilles, window gaps and ventilators before the festival starts, which our guide to indoor cat safety in India covers in detail.
• Allow the cat to initiate contact and respect it if it does not.

Cats also carry the clearer half of the indoor air evidence. The 4.13 odds ratio for respiratory disease above 35 micrograms per cubic metre was found in cats and not in dogs, and an indoor cat cannot leave the room you shut it into. Pick the room with the fewest exterior walls, close its window, and do not burn incense in it.

The day after, and the two days after that

The day after Diwali is when the ground outside is at its worst and the air has not cleared, which makes it the wrong morning for a normal long walk.

Two separate official records say the pollution outlasts the party. The Supreme Court noted that the bursting of crackers, even confined to the Diwali days, leaves emissions in the atmosphere for a prolonged duration, and recorded the Amicus Curiae's concern about smog and soot which remain in the atmosphere for long and which, when ingested, refuse to leave the system of both humans and the animals. The Bhavnagar measurements put a number on it, with PM10 still at 130.3 micrograms per cubic metre on day four after Diwali, above the 100 standard, and only back to 75.8 by day five.

The ground is the second problem and it is the one nobody writes about. Cracker residue on your street is not inert paper. The particulate sampled in Bhavnagar carried zinc, aluminium, lead and manganese in PM10, and sulphur, aluminium, magnesium, barium and zinc in PM2.5. The Supreme Court's own directions name barium, lithium, arsenic, antimony, lead and mercury as the banned chemicals authorities must test firecracker samples for, which tells you what the enforcement regime expects to find.

1. Sweep the stretch of pavement outside your own gate on the morning after, before the first walk, and bag the debris.
2. Walk a short, known route on grass or a swept surface rather than the usual long loop down the main road.
3. Wipe each paw and the belly fur with a damp cloth as soon as you come back in, every time, for three days.
4. Check between the pads for burnt paper, wire and sharp fragments, which is where cracker residue lodges.
5. Resume normal walk length only once the published air quality for your city is back below the Poor band.

What to watch for in the three days after

Expect the respiratory signs to arrive late rather than during the noise. Red or watery eyes, coughing, gagging, a fast respiratory rate at rest and difficulty breathing are the signs Cornell lists for poor air quality exposure, and any of them is a reason to contact a veterinarian. Add appetite and stool to the list, because the AWBI connects prolonged festival stress to digestive issues.

The week after Diwali is also when community feeders notice familiar animals missing, because a frightened animal that ran on the loud night can end up streets away. Check under and inside parked cars before starting an engine, every time, for the whole week, and see feeding community dogs in India for shifting the feeding round earlier through the season.

Who does what in the household

Assign each Diwali job to one named person before the first guest arrives, because a plan that everybody agrees with and nobody owns is not a plan.

This is the step that separates a household where the animal is fine from one where it is not, and it is absent from every page currently ranking for this query. The reason it works is the reason the AVMA gives for watching the exits, which is that the failure happens during a two-minute window when several adults are all busy with something else.

Include the people who work in your home, because in most Indian households they are the ones who open the gate. The cook, the house help, the driver and the building's security guard all need the same single sentence, which is that the pet is inside and the gate does not stay open. A watchman who knows your dog's name and knows it is meant to be indoors is a better safeguard than any device.

• Stick one sheet on the fridge carrying the emergency vet contact number, your regular clinic's festival hours, the microchip number and two current photographs.
• Give children one job each that is a real job, such as checking the water bowl, so they are participating rather than handling a frightened animal.
• Tell the housing society committee in advance if you have a noise-phobic animal, which our guide to pets in apartments in India covers.
• Ask neighbours directly not to light crackers against your gate or wall, which works more often than people expect.
• Keep an older animal's routine owned by one person all week, because a confused senior needs the same hands, and our guide to senior dog care in India explains why age raises the stakes.

Report cruelty rather than filming it. The AWBI records that tying firecrackers to animals causes severe injury or death and is punishable under the Prevention of Cruelty to Animals Act, 1960, and asks that such incidents be reported immediately to the police or to animal welfare organisations.