Trending @Capgemini; Early release, please help!

I just cleared an interview in another company, and they have informed me the joining date is in 2 weeks, but our CG is having a whole 90 days NP can someone please guide what has to be done.

I have got a wholesome better package than CG and it's a product based company as well, I really need that job over my current support role in cg.