15636 me 1din pahle hi booking hoga pnbe se. Guwahati se jo 20th Nov ko depart hogi ..wo train 21st Nov ko pnbe arrival hoga isliye maine kaha ki 15636 1din advance from pnbe booking start hogi aur mil bhi jaega bas ARP se 1din pahle book karna hai sharp 8am. Nahi pnbe kota to hai hi aaram se milega.