The 263.5-km Bengaluru–Chennai Expressway, which passes through Karnataka, Andhra Pradesh and Tamil Nadu, is now expected to become fully operational only by early 2027. The revised timeline follows delays linked to land acquisition hurdles, forest clearances and financial constraints.
The ambitious corridor, being implemented by the National Highways Authority of India (NHAI), has been designed to support vehicle speeds of up to 120 kmph. Once completed, it is projected to cut travel time between Bengaluru and Chennai from nearly six hours to just over two hours, offering a major boost to regional connectivity.
Of the total 263.5 km length, 234.8 km has already been completed, while 28.6 km remains under various stages of execution. The 71.7-km stretch in Karnataka is fully operational. In Andhra Pradesh, 78.5 km of the 85-km segment has been completed. Tamil Nadu has finished 84.7 km out of its total 106-km portion.
The project entails an overall investment of ₹17,692 crore. Officials indicated that delays were largely caused by financial stress faced by the concessionaire. Measures have since been initiated to replace the contractor through lender intervention to expedite the pending works.
Once the remaining sections are completed, the expressway is expected to greatly enhance inter-state movement, reduce congestion on existing highways and strengthen economic links between Bengaluru and Chennai.