The protesters began assembling in front of three gates of the secretariat since 6 AM and raised slogans against the minister.
The Secretariat houses offices of ministers and bureaucrats.
Only the Cantonment gate was spared by the protesters to enable ministers and staff to enter the premises.
The agitators drawn from four districts of Kollam, Alappuzha, Pathnamthitta and Thiruvananthapuram, also wanted action against the Congress leaders named in the judicial commission report on the Solar scam.
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General Secretary, A N Radhakrishnan said the party would launch a series of agitations on the chandy issue.
Chief Minister Pinarayi Vijayan should seek chandy's resignation, he said.
A crucial meeting of the LDF held here yesterday had decided to entrust Vijayan with taking an appropriate decision on the matter.
NCP nominee, Chandy, a businessman-turned-politician, was inducted in the state cabinet 8 months ago following the resignation of A K Saseendran after a sleaze audio clip with a woman went viral.
The State Advocate General C P Sudhakara Prasad had recently told the state government that the collector's report had legal binding and cannot be ignored.
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