With your rank I'm afraid you won't get any private colleges also. The total number of seats available in different colleges of West Bengal through Jenpauh is approximately 1000 and that too only 55 percent seats are there for general category candidates. So considering all these factors your chances seem bleak. But you can try out some other examinations or can perform well next year so that you get a good government college. 

Good luck 

Dear candidate,

Your rank is too high to get a governmet or a private college by state quota. The only private seat you can expect is by management quota. This information is according to previous years cut off which may vary a little, still chances would be very less.

ALL THE BEST FOR YOUR COUNSELLING!