Infosys joined, Deloitte offer - Advice?

Hi folks, I recently moved to Infosys (DOJ: 13 May 2025). Meanwhile, I gave interviews at Deloitte (1 test + 2 rounds) and shared 1st company ctc (₹4.5LPA) as current.

Now, since I’ve joined Infosys and notice period is 3 months (even on probation), I’m unsure how to handle this if Deloitte proceeds with the offer — especially since I told them I’m an immediate joiner.

How should I explain my situation to HR without affecting the offer?

Any advice is appreciated