The delegation led by MP Maitreyan today met Home Minister Rajnath Singh to put forth their request.
"We have asked the Central government to provide security to former Chief Minister O Panneerselvam who is experiencing serious security threat in the state," Maitreyan said.
Besides, Maitreyan also sought protection for AIADMK veteran E Madhusudhanan, the candidate from the Panneerselvam camp to contest the R K Nagar bypoll.
The delegation cited examples of previous attacks on the leaders and asked for the Centre's to provide security to them.