The biggest among them is the Rs 200 billion greenfield airport at Parandur, near Chennai, which has received in-principle approval from the Centre. The bidding process is currently underway. Other major projects include two large pumped hydro storage schemes in Vellimalai (1,100 MW) and Aliyar (1,800 MW), together valued at Rs 117.21 billion, and a 660 MW thermal power plant in North Chennai estimated at Rs 70 billion.

The state is also pushing ahead with 24x7 water supply systems, a desalination plant, power transmission lines, industrial hubs, and a waste-to-energy facility. While smaller projects are expected to be completed within two years, the larger ones could take up to five or six years.

The energy push comes as Tamil Nadu prepares to meet its growing power demand, which is projected to double by 2030 as part of its vision to become a trillion-dollar economy.