I am listing down the various possibilities for mining students at NIT Surathkal-
Be sure to maintain a decent CGPA, so that you can sit for maximum companies. You may also be placed through mass recruitment in which case, your package will be around 3.5 LPA at most. Sometimes startups offer jobs to candidates and withdraw them at a later stage.
I would recommend you choose the branch of your interest, instead of just looking at the placement packages. Try to enquire more about the career prospects of each branch, and the research prospects as well. Make an informed decision after carefully considering all the factors.