How much package can I expect if I am a 9 pointer in IITB CSE and afterwards go to IIM Ahmedabad?

Honestly, if you are a 9-pointer in IITB CSE then instead of going to IIM Ahmedabad you should try to look for abroad job prospects. They will pay you much more than you will be getting at IIT Ahmedabad.

All you need to do is improve your skills by doing good projects and internships. After this, you will secure packages worth 2 Crores in companies like Microsoft and Google. You can also apply for a Quantitative Researcher in top-notch companies like Optiver, Graviton, and Jane Street.