Why not regular trains then. If it is possible why not cash on it. It should not be that difficult. From last few year I have heard that 13329/30 Ganga Damodar getting extended to BXR. Now with PPTA bridge ready I feel it can easily be extended to MFP, BUI, GCT. Also good it HTE-PNBE 18624 is splitted in half to allow one to go to Islampur while the other can go to same places as above. This way North Bihar and Jharkhand can be connected. (It will be faster than 15027/28)