The measures taken in India certainly had an impact in dampening transmission and as India, as in other large countries, open up and as people begin to move again, there's always a risk of the disease bouncing back up, he said.
He added that there are specific issues in India regarding the large amount of migration, the dense populations in the urban environment and the fact that many workers have no choice but to go to work every day.
India went past Italy to become the sixth worst-hit nation by the Covid-19 pandemic.
India saw a record single-day jump of 9,887 coronavirus cases and 294 deaths on Saturday, pushing the nationwide infection tally to 2,36,657 and the death toll to 6,642, according to the health ministry.