India, May 6 -- Only 13 of 35 coal-based thermal power plants (TPPs) within a 300-kilometre radius of Delhi have switched to the flue-gas desulphurisation (FGD) technology, which helps significantly cut down emissions of sulphur dioxide (SO2), the Commission for Air Quality Management (CAQM) in NCR and Adjoining Areas told the National Green Tribunal (NGT). CAQM said that despite TPPs being a significant source of pollution, it is likely to take at least 36 months more for the remaining plants to transition.

CAQM said there are 11 TPPs, with 35 units having a combined capacity of 13,575MW, within a 300-km radius of Delhi. The 11 plants include Dadri TPP, Guru Hargobind TPS, Harduaganj TPS, Indira Gandhi STPP, Mahatma Gandhi TPS, Panipat ...