The Thiruvananthapuram police detained Congress leaders, including Leader of Opposition Ramesh Chennithala and MP Shashi Tharoor, on Friday, for carrying out a protest against demonstration outside Reserve Bank of India’s (RBI) office.br The protest led by the Congress party against the central government’s demonetisation was inaugurated by Ramesh Chennithala.br According to a regional television channel report, few Congress workers climbed on top of a police van to prevent the senior leaders from being detained.