Not possible. Chitrakoot Express has RSA with LJN-BJU Express. Whilst I agree that the RSA can be broken [ since Chitrakoot runs more full than Lucknow Barauni], the timings of both trains are convenient and that will probably not be done.
Ironically this RSA was not present when it was needed, back when the GKP-LJN section was half single track and not fully electrified. I remember the BJU-LJN Mail coming UP to LJN and same rake going DN which resulted in incredible delays.