Options for getting CNF ticket now.
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1.12346/Saraighat Express NBQ-HWH with Boarding point @ NJP, just you need pay bit extra amount around Rs.200-250
Sun-Apr 17 3AC - Avbl 53
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2.13148/Uttar...
more... Banga Express JPE-SDAH Boarding point @ NJP, just you need pay bit extra amount around Rs.50
Sun-Apr 17 3AC - Avbl 10
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Uttar banga is cheaper option, decide between these two which suites you better.