Exam hall exit rules

Hello everyone,

I have read a new notification from Icai.

"Candidates will not be permitted to leave the exam hall till the conclusion of the exam even if they have
completed the paper."

Is this actually being followed stringently in the exam hall.

I am planning to give 2 papers in May 2020. So just wanted to know whether i can leave the hall in the first hour for other papers?

Please help.

Thanks