I am on the bench, If I am reassigned from TCS, will I get an early release or do I have to serve a 3 month notice period?

Thanks @PoorMailing for your response. But I didn't get clarity. If I reassigned while in bench then I have to server 3 months notice period or will get early release?

Resign but don't say you want early release, just keep quiet and they will come to you by themselves