My wife and I are waitlisted on train 19613 to Amritsar, Class. We're in the USA. A friend in India placed the reservation on the Indian Railways site and asked for 2 lower berths. I've read couples are often placed together in the "2 berths", which are an upper and a lower. Class 3A. We'd prefer the 2 berth. Is there a way to change the seating request? Or will we likely get it as a couple regardless of the request for 2 lower berths. Thanks all.