Indian officials have been searching door-to-door for people with flu-like symptoms in the western town where the deadly H5N1 bird flu strain was found.
Navapur town in Maharashtra state is the first place in India where the H5N1 strain has been identified.
Officials in the state say more than 500,000 birds have been slaughtered.
Maharashtra government says a further 4-500,000 birds will be slaughtered by Tuesday evening.
Health officials have also been told to ensure that people raising chickens at home kill them and dispose of the carcasses properly.