I am sharing very interesting information regarding reservation confirmation.I had book 2 tickets in 3rd AC by 19040 Avadh Express from Bagha to BDTS boarding at LJN.
Passenger 1 ticket was confirm due to vacant SS quota & passenger 2 was put under WL 3.
Please note vacant SS quota was allotted to adult male passenger & this berth became vacant from LJN,before LJN SR CTZN was traveling.