The Delhi unit of the Bharatiya Janata Party on Wednesday said Arvinder Singh Lovely, the former Delhi Congress chief who joined the BJP on May 4, will be campaigning for the party in trans-Yamuna areas and seek votes in Sikh-dominated areas of Tilak Nagar, Rajouri Garden and Hari Nagar. Arvinder Singh Lovely and Raj Kumar Chauhan joined the BJP from …