Bhopal lies on a very busy Nagpur-New Delhi route. Most of the trains tend to pass via this route. Congestion was expected. IR can increase the connectivity of suburban bhopal with new bhopal by introducing EMU's for Misrod-Mandidip-Habibganj-Bhopal-Bairaghar.
Secondly, I believe a bypass line from Habibganj to nishantpura would suffice in bypassing long distance trains which get low pax. amount from bhopal.