Better to have RSA of 22182/81 and 22192/91. Both trains belong to JBP division and also have the same composition. I think 6-7 hours time is enough for maintenance.
22191 rests almost for 18 hours at JBP, instead, this trains rake should be given to 22181 and 22182's rake should be used for 22192 like SER uses 12840/39 and 12842/41 rakes alternatively in up and down directions.
This way SeB does not lose its status of best cleaned and maintained train of IR.