What would be my rank?

It is difficult to predict your rank, but it is tough to get into IITs and NITs , rather you can try in IIIT, BITS, Lovely Professional University, Delhi college of engineering etc.

U should try in certain private colleges/institutes which provide quality education and placement services to the students. regularly check the counseling schedules. There are certain good colleges like Lovely professional University, Babu Banarasi Das Lucknow, Babu Banarasi Das, Lucknow.