Nice scene to be seen!
Patna bound pax, had a parallel run for few kms @ Jaipur, where 12316 takes a longer route via SWM, and 15631 takes the shorter route. But due SF category of 12316 and less stops, it was finally met 15631 again @ Mughalsarai, and as per NTES they had parallel run towards PNBE and finaly 12316 overtook 15631!