Hello Lakshit,

There are two ranks for you. One is that of the CRL i.e. Common Rank List where your caste isn't considered and another rank is because of your category called as the category rank. 

You can use both of the ranks for counselling. To use your category ran you will need to have a verified caste certificate and your JEE Mains admit card should show that you belong to SC category. 

During counselling, you can opt for the colleges with both of your ranks.

Hope this helps and good luck!