Sudhakaran is a former Kerala state minister and is presently the Lok Sabha member from Kannur.
Addressing reporters here, Vijayan said the new revelations have come from a former aide (Prasanth Babu) of Sudhakaran who was also his driver.
"He has revealed that the shooting of the then Kannur CPI-M district secretary EP Jayarajan was done after a conspiracy hatched by Sudhakaran at his residence in Kannur," said Vijayan.
Vijayan also said that Babu has revealed that Sudhakaran was behind two other attacks in Kannur in which one person was killed and another seriously injured.
Jayarajan, currently a CPI-M legislator from Kannur district, was shot at on board the Rajdhani Express at Chirala in Andhra Pradesh on April 12, 1995 while traveling from New Delhi to Kannur.
"In the light of the new revelation, the Home Ministry here should give direction to the police to register a case against Sudhakaran," added Vijayan.
"Babu has said that even though a case was registered against the people who actually did the shooting, Sudhakaran got away after the Congress government here influenced politicians in Andhra Pradesh and his name was not there in the list of accused," added Vijayan.
Reacting to the developments, Jayarajan said that it was known that he was shot by a group of people selected to do the job.
"Now that the name of Sudhakaran has come out, the police should find out the truth," said Jayarajan.
Sudhakaran told reporters that Babu was never a close aide as mentioned but was his driver for just a month.
"I will cooperate with any enquiry and I welcome a probe into the new revelations. But it must be known that Babu, today is unemployed and has lost his job in a bank which is governed by CPI-M members and it is least surprising that since he wants his job, he has to please the CPI-M," said Sudhakaran.
Home Minister T Radhakrishnan told reporters that the government had a policy to look into the matter if there was any truth in the new revelations.
"The high court the other day upheld a case that we registered based on a new revelation and hence we will enquire into this revelation also," said Radhakrishnan.
Director General of Police Jacob Punnoose said that the police have a standard procedure wherein first, they will find out from the person who made the revelation and depending on the veracity of the information, they will decide to go ahead or not.
Thiruvananthapuram: Communist Party of India-Marxist (CPI-M) state secretary Pinarayi Vijayan on Saturday asked the Kerala government to register a case and begin an enquiry against Congress Lok Sabha member K Sudhakaran, following new revelation made in a shooting case.
First Published: Saturday, June 30, 2012, 16:23