With the deadline for lockdown4 speedily approaching, the Prime Minister's Office is busy reviewing the entire 60-day lockdown period. The Home Ministry is crunching data that would help decide the strategy from June 1. Going by the demands of the states and the condition of economy, the centre had given considerable relaxations the last time it announced a two-week extension of the lockdown earlier this month. The final decision had been left to the states. In the days that followed, it also reopened the domestic aviation sector, starting flights to and from several select cities.