Many ER Trains going towards North India are presently running at a max speed of 75-80 Kmph on the DHN-GAYA-MGS Section , including Rajdhanis and Durontos. This speed restriction has been applied on this route due to security reasons because of insurgency in Jharkhand and Bihar. I want to know that is the 2277/78 Punjab Express also following this speed restriction at present, instead of running at 120 Kmph & after how many months will this restriction be lifted ?? Thanks.