but its seen tat tamilnadu ,ap,kerela,etc run between itarsi and new dehli in 11.5-12 hours....cant v do this 2 our pune trains...i m saying pune 2 NEW DEHLI not HNIZAMUDDIN.....also train tat runs within 12 hours from itarsi 2 ndls(2781 swarnajayanthi exp)....on its return journey takes 13 hours+..y is it so