Saratkumar joined the party on the eve of the May Assembly polls.
The man, identified as Soibam Saratkumar Singh, went missing after he had gone to his farm in the morning. Later, his body was found, with wounds made by a sharp object, a police officer said.
A commando contingent of the Manipur police has been airlifted to Jiribam on Saturday morning from Imphal to assist in the security operations against the militants, police said.
The police on Wednesday arrested Lenin, a news editor of Dina Malar, a Tamil daily which published a news item giving details of a statement purportedly given by a TV artiste arrested in connection with a prostitution case.The arrest followed protests from the South Indian artistes Association, led by R Saratkumar, against the publication of the names of the artistes in the newspaper along with their photographs. He demanded action against the newspaper.
'For what has Rajnikant expressed regret -- his speech or the fast organised in support of Tamil Nadu's stand on the Hogenakkal project? Was he saying that he should not have participated in the protest at all? He owes an explanation to the people of Tamil Nadu, who have made him the superstar he is today,' Saratkumar told a television channel.
S Kuppusamy will be the leader of the DMK group in the Lok Sabha and R Shanumugasundram in the Rajya Sabha.