Dear Ayush
As you haven't mentioned the specified college. I want to tell you that most the colleges in India allows lateral entry students except IITS/NITS. And if you want to secure any seat in any institution you need to qualify one exam and if you get less rank in that you are eligible to apply for different colleges..
If you need more information,  comment here.
All the best.

there is no admission in 2nd year of BTech. there is no lateral entry scheme exist in IITs or NITs . They do take applicants only in 1st year of Btech.
Hence do not try for this .