Hello, welcome to IRI.
Actually the problem with this is that it lags behinds 13201 RJPB-LTT Express which has multiple stops along MGS-ACOI route, both of the trains had to get their loco changed at ACOI since first arrives 13201, its loco change takes 20 min and 20 min more for Chambal Express.
However till BNDA-JHS it covers 1-2h delay and final delay is of only 1 hour.