There should be 2 train daily to Kolkata region from NTSK/DBRG
15959/60 with current route for 4/5 days.
15959/60 via NTSK-DBRG-MRHT-SRTN-DMV-LMG-GHY for 2/3 days.
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Both train departure timings late at night, around 10pm and early arrival at HWH, around 6am.
15961/62 daily with same timings, extended to NTSK.