I have recently booked ticket in arunachal express by locking the berth and after payment deduction I denied as popup came k lower berth nhi milega as I chose book only option if one lower birth is available (my choice was sl). Train me 200 se jyada seats khali thi..bad me normal lower berth same tarike se book kiya to mil gaya but side lower best hota h. Irctc ki algorithm smjh se pare hai