Chandrasekharan, who was expelled from CPI(M) few years back, had floated his outfit challenging the party in its stronghold Onchiyam in Vadakara area in the district.
Chandrasekhran, once a supporter of CPI(M) veteran V S Achuthanandan, was expelled from the party after he incurred the wrath of party officials.
Leaders of various political parties condemned the murder of Chandrasekharan.