Greetings Uday,
Can you please see this thread Question on MCI3 Cost report - have you performed the regeneration of PMCO data and the info structures accordingly? Did you reset the target version in OLIX (RMCA1155) ?
Another thing I would check is your setting in SPRO > Plant Maintenance and Customer Service > Information Systems for Plant Maintenance and Customer Service > Assign Value Categories to Maintenance Cost Key Figures
to see if there are still any overlaps between the Value Categories assigned (but I understand you did all that already?)