In a Facebook post, he said the BJP leader has turned to "instigation politics" after his "politics of caste, religion, money and hatred" were rejected by the people of the state.
He slammed Shah for making "nonsense statements to spread hatred and create trouble" in the state and said the BJP-RSS would not gain anything by spreading "false and fake" statements.
"The leader of the ruling party of the country Shri Amit Shah is busy implementing anti-democratic and anti political agenda of RSS," he added.
Leading the 'Jan Raksha Yatra', the BJP's ongoing campaign to highlight "Left's atrocities" in Kerala, to the CPI-M office at New Delhi, Shah had alleged that the Left workers were killing and terrorising BJP and RSS workers in the southern state which is ruled by the CPI(M)-led government.
Shah had inaugurated the yatra led by BJP Kerala chief Kummanom Rajasekharan at Payyanoor in Kannur on October 3.