NEW DELHI (AP) — Indians struggled to comply with the world's largest coronavirus lockdown on Wednesday as the government began the gargantuan task of keeping 1.3 billion people indoors.

Official assurances that essentials wouldn't run out clashed with people's fears that the disease toll could soon worsen, gutting food and other critical supplies.

In five days, the number of confirmed cases of COVID-19, the disease caused by the coronavirus, has jumped from about 200 to 519, and experts say the real toll is likely to be much higher because of insufficient testing.

On Tuesday, Prime Minister Narendra Modi announced a three-week countrywide lockdown covering nearly one-fifth of the world's population “to save India and Indians.”

He said the lockdown would be “total,” but officials after his speech released advisories explaining that medical, law enforcement, media and other sectors were exempted and that stores selling food and other essentials would remain open.

Television images from many cities and towns on Wednesday showed shuttered markets and offices. Normally bustling railway stations stood empty. Joggers awkwardly avoided each other to maintain safe distances.

Still, Modi's speech triggered panic buying as online retailers Amazon and Big Basket, an Indian grocery delivery service, began canceling previously placed orders and said they had no delivery slots available. That spurred people to risk fines and other penalties for violating the lockdown by going out to shop at local stores.

Social distancing was forgotten at a grocery store in the Nizamuddin neighborhood of New Delhi as panicked residents swarmed inside and jostled with each other to get fast-disappearing supplies.

An elderly couple who waited to enter the shop for nearly 30 minutes eventually returned home empty-handed.

Although the lockdown made provisions for people to leave their homes to buy food, TV news and social media showed police striking would-be shoppers in the streets with batons in the southern state of Kerala, the financial hub of Mumbai and New Delhi.

Alok Barman, a servant who works in several well-to-do south Delhi households, said he was beaten up by police when he ventured outside his home in the city's outskirts.

“Some homes that I work in paid me some money and I thought it was best to get some food in the house. But the police attacked us with sticks and beat us," he said. "Now we have nothing to eat.”

Tarique Anwar, a former banker, said he went out to buy milk and vegetables at a grocery store in Delhi’s Jamia Nagar neighborhood when he was confronted by a group of policemen who ordered him to go back. He only managed to get vegetables.

A video shot by a passerby showed a policeman using his baton to smash the interior of a meat shop in the capital's Zakir Nagar neighborhood. The shop’s owner said police also beat him up and told him he shouldn't have opened his shop.

“They charged inside and started abusing and beating me,” said Parvez, who uses only one name.

New Delhi police spokesman Anil Mittal denied that police were beating people.

Similar scenes occurred in India's northeast, an eight-state region where only two of the country's COVID-19 cases have been reported.

Others defied the shutdown order not in order to shop but rather to pray.

Wednesday was the start of the Hindu new year according to an ancient lunar calendar and the beginning of a nine-day holiday in which Hindus normally perform daily rituals called pujas at temples. The lockdown order, however, explicitly religious gatherings and instructs places of worship to close.

Modi acknowledged in a tweet that “The celebrations will not be like they are usually but they will strengthen our resolve to overcome our circumstances.”

“May we all come together to win the important battle that the nation faces against COVID-19,” he said.

Some Indians, including a member of Modi's Hindu nationalist Bharatiya Janata Party, defied the lockdown order, which also bans public gatherings of five or more, and attended temple ceremonies.

Yogi Adityanath, the chief minister of India's most populous state, Uttar Pradesh, prayed to a statue of Lord Ram at a makeshift temple in Ayodhya with about 100 other people.

Even as Adityanath ventured outside, Awanish Awasthi, an Uttar Pradesh government spokesman, told reporters in Lucknow that the lockdown was being strictly enforced in the state. He said cases had brought against 5,590 people for violating orders to stay at home, but denied allegations of police excesses.

Adityanath, a Hindu monk and BJP leader, defended his actions, saying the ritual procession took place at 4 a.m. and only “10 or 12 people” were allowed into the actual temple space with him.

“This is wrong to say that social distancing was not maintained,” he told The Associated Press, adding that “precaution was taken because we know this is very contagious disease.”

In recent days, India had gradually expanded stay-at-home orders, banned international and domestic flights and suspended passenger service on its extensive rail system until March 31.

Meanwhile, medical personnel and airline crews complained that they faced discrimination from landlords and neighbors afraid they might transmit the virus.

State-run carrier Air India issued a statement appealing “to all, particularly the law enforcement agencies to ensure that Air India crew are treated with respect and freedom that every citizen deserves, especially those who have been discharging their duties in selfless manner for return of fellow Indians.”

A health ministry statement on Tuesday said multiple complaints had been received from doctors, paramedics and other health workers in New Delhi that their landlords were forcing them to leave their houses or apartments.

The ministry asked police and municipal authorities to take strict action against the landlords.

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Associated Press writers Rishabh R. Jain and Aniruddha Ghosal in New Delhi, Biswajeet Banerjee in Lucknow, Wasbir Hussain in Gauhati and Aijaz Hussain in Srinagar contributed to this report.