This is a good suggestion to run Kharagpur-Asansol-New coochbehar train......there r long distance trains from South or Western India to North east via Kharagpur or Hijli....but in those trains very very few seats for Hijli or kgp..and gettingtickets very difficult..... a direct train from Kharagpur to North Bengal or Assam will be good and a decicated train between Noth and South Bengal.
Tweet this suggestion to DRMKGP, GMSER, PIYUSH GOYAL. Now as i heard New trains list is under progress in SER HQ Garden Reach, Kolkata for IRTTM 2020..... Please post ur suggestions now.