Firstly I'd like to tell you that reservation of BCD is 7% in BC reservations which is very less and it's nearly equal to OC. Now getting to the poin getting 900+ rank in general category won't fetch you anything so I guess that'd be the same for BCD boys. The one thing you should do is start preparing for gate because mere qualifying gate fetches you admission in tier 1 pgecet colleges.
Hope this helps and clears your doubt to some extent possible.