India, April 18 -- The election campaign for the Gurugram Lok Sabha constituency gained momentum on Wednesday with sitting MP and the Bharatiya Janata Party (BJP) nominee Rao Inderjit Singh setting up his election office in Sector 15 (part one) surrounded by party workers. Singh, who has won the Gurugram Lok Sabha seat, five times earlier said that he expected people to vote for him cutting across caste differences....