TCS Notice period

Policy breach will get you release in 1 day

you can go on the bench and reduce it to 7 days.

If you are lucky you can release in next day itself

If u r in project and if manager agreed means it is possible. (Managers will agree to reduce notice period only if it's a education/medical purpose) Or
If u r in bench you will get released within a week.

Its all depends on manager and HR

I belive , depends on situation and factors, consideration...

Yes. We can my colleague got released in 2 weeks after accepting resignation by HR

You have to serve 90days notice period

No chance