Hello Rashmi 

For the rank you have achieved in BSC you can get seat in government colleges and in private colleges in bsc microbiology with the category you belong to. You can expect your seat in few government colleges. As you have chance of getting seat in few colleges so choose the right college in which it has best placement, best ranking , faculty, management. For more information about the colleges and courses please go through the below link

https://www.careers360.com/college-predictor

All the best