There is heavy demand for ICE for BZA/MTM Via BVRT & GDV as many go by Link/Seshadri or Visakha ..
Similarly many ppl board 18520 at GDV, KKLR, AKVD, BVRT & TNKU as it single stop from RJY.
So normal ICE (Ordinary Chaircar) is needed from BZA Via GDV & BVRT to vskp before Ratnachalam and after Link (from vskp) ..