Addressing a press conference here, a directors' body and the Artistes' Association said they will take out a rally before submitting a petition to Jayalalithaa.
"We will place a request before the Chief Minister that she should use all powers (available to the state government) and allow those seven (convicts) in the society," Artistes' Association President M Nasser said.
Speaking on behalf of the Directors' Union, R K Selvamani said the objective of awarding prison term to a person is to reform and claimed that the convicts -- including Murugan, Santhan and Perarivalan -- had been jailed for 20 years.
Other professional bodies of Tamil cinema such as the Producers' Council would also participate in the rally, they said.
The announcement comes close on the heels of some of the directors including Selvamani, Vikraman and Amir meeting the convicts in the high-security Vellore prison recently.
They had then said the seven could be released by the Tamil Nadu government under Article 161 of the Constitution, which allows the state government to grant pardon and commute sentences in certain cases.