Deloitte offer negotiation tips

Hi,

I'm positive about an offer letter from Deloitte in a couple of days, can anyone share the expected pay range in this company for a 9.5yrs experienced candidate as per current market standard.

Tech stack - Java backend developer (Microservices) + Cloud native + ci-cd tools etc.. CCTC - 16lpa.. ECTC - what % can I ask.? Note - 2 rounds of tech Interview went pretty well 8.5/10.

This is the 2nd switch in my career and i feel I'm pretty outdated with current trends.

Please share your inputs.