All International passengers will have to undergo mandatory quarantine for how many days as per the latest government guidelines?

As per the guidelines released by the Government of India on January 7, 2022, all the passengers flying from abroad will have to home quarantine themselves for a week after landing in India and get themselves tested on the eighth day. The passengers coming from at-risk countries and testing negative on arrival will also have to do the same. The Central Government has also updated its list of 'at-risk' countries and has increased the number of countries to 19.