NEW DELHI: State-run generation utility NTPC will help Central Pollution Control Board to set up 25 continuous ambient air quality monitoring stations (CAAQMS) across six states and three union territories, the company said in a statement on Wednesday.The company will provide financial support of Rs 80 crore for installation of CAAQMS in Gwalior (Madhya Pradesh), Ranchi ( Jharkhand ), Patna (Bihar), Varanasi, Lucknow, Kanpur and Allahabad (all in Uttar Pradesh), Pimpri-Chinchwad (Maharashtra) and Madurai (Tamil Nadu).CAAQMS will also be installed at Port Blair in Andaman & Nicobar Islands, Silvassa in Dadra & Nagar Haveli and Daman in the union territory of Daman & Diu.Data collected from these stations will be used for evaluation of air quality index for these cities.