First Ecor proposed extension of it's train to which Ser rejected .Ecor requested for introducing some new trains within state which was even rejected. Issue here is stations lying under SER have poor infrastructure (mostly Bls-Jer region). While SER provides quite good infra to places like Rourkela. Issue is not with SER or Ecor the major issue with Ser is that it is so busy with other major revenue earning sources that it is ignoring some other potential revenue earning sources