Make few Trains from North East regions towards HYB/SC, YPR/MYS, Pune/Mumbai/ADI via ASN-PRR-CKP-ROU-BSP-G/NGP, as this entire section lacks connectivity to North Bengal and North East.
Remember the KYQ-PUNE was a hit, that ran as special for about 3 years and stopped following a bridge collapse and then never thought off..
Also remember the places like PRR, TATA, CKP even HWH don't have any train to South via G/NGP, Mamata as Rail Minister proposed the HWH-MYS via G, but later it followed the same common via BBS-VSKP route, while introduced.