New Delhi, Nov 1 (UNI) The national capital witnessed a massive show of Opposition strength on Sunday as leaders and supporters of the INDIA bloc converged at Ramlila Maidan for the ‘Vote Bachao, Desh Bachao’ (Save the Vote, Save the Nation) Maha Rally, turning the heart of Delhi into a sea of party flags, placards and slogans against alleged electoral manipulation and demanding sweeping reforms in the election process.