Political campaign for the Assembly election is gaining momentum in Coimbatore in Tamil Nadu. Prime Minister Dr.Manmohan Singh will be visiting the city on 9th of this month. He will address an election rally on Saturday evening. Tamil Nadu Chief Minister and DMK leader Karunanidhi and Deputy CM Stalin had already completed their campaign in the district. AIADMK leader Jayalalitha will address a public meeting at VOC park grounds in the city by today evening. AIADMK front party National leaders like CPI(M) General Secretary Prakash Karat, CPI General Secretary A.B.Bardan and TDPPresident Chandrababu Naidu will also address the gathering in the meeting.