Hello Aspirant,

For SC/ST/OBC category 40th is the qualifying percentile and 146-113 is the minimum marks needed .It is right now difficult to say the closing marks for round 1 as they will only release the rank list . And today the provisional result list for round 1 has been released in the official website mcc.nic.in. (https://mcc.nic.in/UGCounselling/) , you may go through that to know about the ranks and other details category wise . However according to the list  816110 was the last rank for OBC and 811773 for  OBC PwD.

All the best