India, June 30 -- The fastest train between Bengaluru and Chennai takes close to five hours. For two cities that together anchor South India's technology and manufacturing economy, that has always been the journey you tolerate, not the one you choose. But all that is about to change. The time it would take for you to travel from Chennai to Bengaluru will decrease to just 73 minutes. The speed on dedicated rail lines would be at 320 kmph. NHSRCL has done its alignment survey and DPR has been prepared. Karnataka has granted administrative-level support (April 2026), and the project is about to begin from 2027-28 onwards.

What This Project Actually Is The Chennai-Bengaluru HSR line is Phase 1 of the overall Chennai-Bengaluru corridor. It s...