Raja, the current lockdown will be completed by May 31st. That is another 4- 5 days. Now to be honest, lockdown has got nothing to do with preparation. Infact Lockdown gives you more time at hand than juggling from school to tutions and then JEE Mains preparation. But just to answer your questions, the current lockdown period ends on May 31st and the next course of action will be decided based on the situation until May 31st. As the relaxations have been made, it is only a matter of time before things get back to normalcy.