The prime minister is resisting the move due to the economic impact.
India added more than 355,000 cases on Tuesday, down from more than 400,000 daily infections on 30 April.
The government says cases are "slowing down", but testing numbers have also dipped, meaning the true caseload could be far higher.
Confirmed infection numbers have however been consistently falling in Maharashtra state, which has driven the second wave since early April.
