New Delhi, Oct. 2 -- Security was tightened in central Delhi on Friday ahead of a proposed demonstration at Jantar Mantar against Chief Election Commissioner Gyanesh Kumar over alleged irregularities in the Special Intensive Revision (SIR) of electoral rolls.

The Delhi Police has denied permission for the proposed demonstration and made additional security arrangements in view of the expected turnout, police sources said.

Police and Rapid Action Force (RAF) personnel and a riot control vehicle were deployed at Jantar Mantar. Entry and exit gates of the nearby metro stations of Janpath, Patel Chowk, Central Secretariat, Rajiv Chowk, Seva Teerth, Mandi House and Lok Kalyan Marg are closed till further notice.

Delhi Metro has also closed ...