Gian Singh Mann, the cousin of Punjab Chief Minister Bhagwant Mann, Monday joined the BJP and targeted the AAP government over corruption, which he alleged has “doubled” and other issues, including the menace of drugs and unemployment. Lashing out at the Arvind Kejriwal -led outfit, Gian Singh said that the AAP has “drifted away” from its policies and also alleged that the leaders from Delhi were calling the shots in Punjab. Gian Singh, who hails from Satoj village in Sangrur district, is the son of the younger brother of the CM’s father. His mother and that of his cousin are sisters. He joined the BJP in a ceremony attended by Haryana Chief Minister Nayab Singh Saini and Punjab BJP Chief Sunil Jakhar, who welcomed him into the party at the Punjab BJP headquarters here. Besides Gyan Singh, industrialist Vijender Singh and Gajender Singh from Barnala also joined the BJP, Monday. “ We welcome Gian Singh Mann to the BJP,” Saini announced to the media.…