Trending @Accenture; 16 Lpa is good package for 4 years of experience?

Your base pay should be 3 times of your expirence.
Ex - you have 4 years of expirence, so your base pay should be : 4×3=12 LPA..!

Yes. It's good and as expected

No you should get atleast 40LPA

Tech stack?

Now it is base pay × 4 .. please correct

I'm 6 year experience with 9.3 lpa as base.. I'm in infra support projects..

Yes