long story short ...s5 and s6 coach were occupied by unauthorised people and they refused to vacate , there was verbal fight between reserved and unreserved people and then a stand off...train got delayed ...then senior IR officials came to access the situation , seeing no end to standoff, they attched 2 extra coaches to accomodate the people ....and only then train could start ..i think it started 3.5 hrs late ...