Hey Chinmoy, YMCA is a very prestigious institution and it is very famous for btech. To get admission in this college you have to score atleast 30-40k rank. Then only you can confirm the seat in that for the OBC category. 1.5 lakh rank is such a big one. In my opinion, work hard for one more year and try to get good rank. Or else you can try for the other colleges also.

Best of luck!