Chennai, March 5 -- All the six candidates -- four from the ruling DMK-led Front and two belonging to the Opposition AIADM-led NDA, filed their nomination papers on the last day today to fill up six seats that would fall vacant next month in the biennial elections to the Rajya Sabha from the Tamil Nadu Assembly.

Though the elections are scheduled for March 16, all the six candidates would be declared elected unopposed on March 9, the last date for withdrawals after scrunity tomorrow.

Those who filed their papers were five-time member Trichy N Siva, who will be entering the Upper House of Parliament for a record sixth successive term and Prof J Constantine Ravindran of the DMK, Christopher Tilak of Congress and the L K Sudeesh, Treasurer o...