"Together, we will fight COVID-19 and create a healthier India", he said on Twitter, soon after his address to the nation during which he announced a lockdown for three weeks to tackle the coronavirus pandemic.
So far India has had a relatively low number of coronavirus cases, with 469 infections and 10 deaths so far, and the government had already introduced stringent measures to try to halt local transmission in a country where millions live in densely populated conditions with bad sanitation and limited healthcare access. He has assured that essential services will be rendered by the state and central governments. The virus has now spread to nearly all states in India, with the highest number of cases in Maharashtra, where the city of Mumbai is located, and the southern state of Kerala.
"This is a curfew".
This was the second time in a week when PM Modi addressed the country on the fast-spreading disease.
Any negligence in these 21 days will "push the country and your families by 21 years", he said underlining the massive danger the coronavirus poses. To save India, to save every citizen of India, to save you and your family, there will be a complete restriction on moving out of your house.
Streets were deserted in the national capital New Delhi and offices shut at the start of a lockdown to run till the end of the month.
Meanwhile, India's Ambassador to the US Taranjit Singh Sandhu on Monday held a video conference call with representatives of Indian companies in the United States over the coronavirus outbreak.
Previously, on March 22, in a separate public address, the Modi urged citizens to adhere to the directions surrounding the "Janta Curfew", from 7 am to 9 pm in which all individuals, except for those involved in essential services, would not be permitted to leave their homes.
India's impending lockdown trails a series of similar announcements made earlier this week.
All places of worship are also ordered to close and all religious gatherings were banned without exception. A maximum of 20 people would be allowed to attend a funeral.
The ministry of home affairs said essential services including grocery stores, banks, ATMs and gas stations will remain open.
E-commerce giant Amazon, which has a big presence in India, said in a statement on its website that it would only sell "high priority" products to customers.
In recent days, India has been gradually expanding stay-at-home orders and has banned global and domestic flights and suspended passenger service on its extensive rail system. "We need to believe that this is the only way to control it - Stay Home!"