Are you ok with Garibrath (3A)? If so, the best deal in terms of CNFmation would be Telangana Exp from MCI to SC (will get CNFed by berth multiplexing, not to worry about RLWL number), and SC - YPR Garibrath.
If not ok with SC - YPR Garibrath, you can choose to travel from SC - SBC by SBC Rajdhani (this will also get CNFed by berth multiplexing)