Engineering

Better to go for CSAI, as future is of artificial intelligence. Many Indian & foreign companies are moving towards AI. So, it is a very good opportunity for you to grab it and become a leader in it. You can expect average package in CSE but I think you will get better package in CSAI, may be not in starting but surely after few years. Go for CSAI.

I don't think you can get good after passing out from IIT. You can expect a starting salary of maximum INR. 15 Lacs in top IITS in civil. So, most of them go for higher studies or either go for exams like GATE UPSC IES etc.

IIT Delhi
IIT Kharaghpur
IIT Roorkee
IIT Guwahati
All the best.

You must be the domicile of West Bengal, WBJEE rank should be good and your family income should be less ( below INR. 1-2 Lacs per year).

University of Agricultural Sciences, Vivek Nagar, Bangalore.

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Or else, change stream to law, hotel management B.Sc MBA architecture BA etc.