RB has directed zones to prepare DPR for raising speed on selected routes to 160kmph
For South India:
Bengaluru-Chennai - 362kms
Bengaluru-Hyderabad...
more... - 632kms (Via: DHNE)
Chennai-Hyderabad - 715kms (Via: GNT)
Nodal railway for South region: SR & SCR
Within 2 months DPR to be submitted by Nodal Railway to Railway Board