Kolkata, May 3 (Reporter) Prime Minister Narendra Modi, who arrived in the city last night, is scheduled to address three election rallies in West Bengal's southern districts later on Friday, BJP sources said. Modi arrived on Thursday night and halted at the Raj Bhawan. He will address his first BJP rally of the day at Durgapur-Bardhaman Lok Sabha seat, and then will proceed to Krishnanagar in Nadia district and finally at Bolpur in Birbhum before leaving for electioneering in neighbouring Jharkhand. Modi reached Raj Bhavan around 10.20 pm and was greeted by Governor CV Ananda Bose...////...