I wonder if this train 12307/08 could have been made daily (as was the case during its slip version in its ICF days), while the connection to BKN could be retained by making 12495/96 into a tri weekly service (additionally 12259/60 Duronto frequency could be increased in future as per demand). 12307/08 used to be a very prestigious superfast train on its route back in the day, and it shouldn't be reduced to a mere 4 day service.