CHENNAI: An amendment made to Sec 34 of the Representation of the People Act in 2009, which hiked the security deposit amount for candidates contesting in Parliamentary elections from Rs 10,000 to 25,000 and fromRs 5,000 to 10,000 for the State Assembly elections has been challenged in the Madras HC. Justice P Jyothimani, before whom the writ petition from G Murugendran of Uchipuli in Ramanathapuram district came up for hearing today, ordered notice to the Election Commission and the Union Ministry of Justice and Law, New Delhi.