00347nas a2200097   4500000000100000008004100001260007800042100001000120245006200130856005700192       2019                            d  c11/2019 bCenter for Study of Science, Technology and Policy aBengaluru 1 aCSTEP00aComprehensive Clean Air Action Plan for the City of Patna  uhttps://www.cstep.in/publications-details.php?id=861