Get one offer, resign, in notice period search for more better opportunities. 
 This is the time where you will get good hike.

What about the experience letter and other formalities? Could you also please let me know that too?

Software Engineer

Seperation team will be arranging that. You will be given seperation team  email id for communication

Software Developer

I can give you a oracle referral:
https://forms.gle/iCgsQfBfsVeLSxnW7

Hey I am have 4.5 yrs experience Java full stack TCS.Could you please refer me.

Yes plz upload ur resume using above link

I have experience in cybersecurity project of 2.5 year's could you please refer me

Let me see if there's any openings for CyberSec

Cybersecurity

Could anyone please help me out with the necessary precautions & steps that one should take before putting the paper and while serving the notice period?

2+ YOE at TCS. Thinking to resign