MUMBAI, June 20 -- The Railway Board has capped the number of Wait List (WL) tickets in long-distance trains in an attempt to ease overcrowding on railway platforms. According to the new rule, the quota has been capped at 25% for each class of coach - Sleeper, 3AC, 2AC and 1AC. Until now, the number of WL tickets was arbitrary, varying between railway zones. Railway officials said that on the Central and Western railways, WL tickets used to comprise 20-40% of the total seats available. P6...