Hi Swapnil!

There is no separate marking scheme for the students belonging to reserved category. But there is a reservation in the UPSC exam for the students belonging to reserved category  in terms of the number of attempts, age relaxation, relaxation in IAS cutoff and the total number of seats. For example, the number of attempts for general category, EWS  is 6 and forOBC is 9 and for sc/st students is unlimited upto age limit. Similarly, there is a huge difference in cutoff/closing ranks.

Thankyou!