The Special Investigation team arrested CPI-M area committee secretary from Onchiyam C H Ashokan and area committee member K K Krishnan from their houses, police said.
The arrests sparked strong protests from CPI-M in Vatakara town where party activists gathered in large numbers while the two were brought to the court.
Ashokan, former state general secretary of pro-CPI(M) government employees union and Krishnan were remanded them to 14 days police custody.They have been charged under IPC section 118 for hiding information.
CPI-M, however, alleged that the arrest was part of a UDF conspiracy to frame party leaders in the case.
Rejecting the charge, State Home Minister Thiruvanchoor Radhakrishnan said the investigation team was carrying out their task without any interference from the government.
Replying to reporters' queries at Thiruvanathapuram, Radhakrishnan said it had always been the CPI-M's style to come out with conspiracy theory when enquiries reached the party activists.
Ruling out referring the case to the CBI at this juncture, he said the slain leader's wife herself had expressed satisfaction over the progress of the investigation.
The SIT had on Tuesday arrested from Mysore one of the gang members who allegedly hacked Chandrasekharan to death. He was allegedly an accomplice of N K Sunil Kumar, the prime suspect in the case.
The arrest of the two CPI-M functionaries takes the number of those held in the case to 14.
Chandrasekharan, 50, a former CPI-M leader from the party stronghold of Onchiyam in Kozhikode district, was murdered at Vallikkad near Vatakara on May 4.
Chandrasekharan was expelled a few years ago after falling out with the CPI-M leadership. He later floated Revolutionary Marxist Party.
