Thats why I was thinking why there hasnt been any updates on 12423 & 12510 ex NBQ....Thankfully all the trains have started moving & Rajdhani is about to pass through New Alipurduar.But yes traffic has been badly hit.Thanks for providing news of the exact reason for this blockade.
BTW,Kamatapur will never gain a separate state status unless & untill Gorkhaland is granted.But Koch Rajbanshi's already belong to SC status & I dont see any reason for converting them into ST.