The question here isnt of "chalaya jaye"...as if it was the case, the rake already would have been running...& its not running even @ ARJ!!
If u check out the ARR/DEP history @ JNU & BE, u gonna find its mostly late in departure from JNU, while @ BE end, its depart mostly in-time!!
And u mean, a train gonna run for 48 hrs with 6 hours of brk???