The existing airport is undergoing modernisation and expansion with an addition of 1,069.99 acres (433.01 ha), while a new greenfield airport is to be constructed at an estimated cost of ₹ 2,000 crore in Sriperumbudur on 4,200 acres (17 km2) of land.[364] The new airport is said to be likely to handle cargo spillover traffic from the existing one.[365]