The lower berth (LB) in the 2&3-tier compartments is like a hot cake and everyone opts preference for it. The berth preference in the reservation form should only be admissible to senior citizens. With the present arrangement in the software, all the lower berths are given away during the first few days of opening of advance reservation. Passengers booking after that do not get lower berth even for senior citizens. Railways should allot berths serially without entertaining any preference for berth to passengers who are not senior citizens.