Trending @Infosys; Service notice period | need advice

I am currently serving my notice period, which is officially 90 days. As per this, my last working day would be in August. However, I’ve requested an early release from my current employer (Infosys), as my joining date with the new organization is scheduled for 30th June.

I haven’t received confirmation yet regarding the early release. In case it doesn’t get approved, would Cognizant be open to extending the joining date accordingly?

Also, could you please advise on what notice period duration I should communicate to other prospective employers at this stage — the original 90 days (August) or the expected early release by June/July?