NEW DELHI: Delhi minister Parvesh Verma on Thursday acknowledged that toxic air has become a serious menace for the national capital, while squarely blaming former chief minister Arvind Kejriwal and the Aam Aadmi Party (AAP) for what he described as years of inaction on pollution control.“We accept that toxic air is a big menace,” Verma said, alleging that the previous AAP government failed to...