Chennai, Aug. 11 -- The Cabinet Committee on Economic Affairs (CCEA) has approved the construction of a four-lane Marakkanam-Puducherry section (46 km) of National Highway 332A in Tamil Nadu at a total capital cost of Rs 2,157 crore.

The project will be executed under the Hybrid Annuity Mode (HAM).

At present, connectivity between Chennai, Puducherry, Viluppuram, and Nagapattinam relies on the existing two-lane NH-332A and adjoining state highways, which face heavy congestion due to high traffic volumes, particularly in densely populated stretches and major towns.

The upgrade to a four-lane configuration aims to ease congestion, enhance road safety, and meet the mobility needs of fast-growing urban centres along the corridor.

The proj...