due to heavy rush in central north railway line railway ministers had announced to add extra coaches in mail express trains by 1 sl/3a/2a coaches in trains 11069/11070/11071/11072/12165/12166/15017/15018/15648/15647/15645/15646/12336/12235/11055/11056/11059/11060/11065/11066/11061/11062/18610/18609/13202/13201/11093/11094/12167/12168/ from 01/02/2013 to 31/07/2013