There are other reasons too....on Monday we have Humsafar exp at 7 pm on same route. Then we have AC double decker , also vskp-tpty exit special. 4 trains in just 3 hrs span that too 3 originating trains also has effect.
Still 330 seats booked which is almost 4.5 coaches. Let's see in next run
I think it will have better bookings for next trip