Addressing reporters here, he said he was not happy with the speech delivered by Vijayan at the peace rally.
The theme of the rally was about creating communal harmony, he said.
However, the slogans raised during the CPI-M rally and the Kerala Chief Minister's speech would in no way promote communal harmony, he said, adding that he condemned the slogans and the speech.
When the Chief Minister of a neighbouring state visited Karnataka, it should be our duty to treat him well and the Sangh Parivar's attempts to prevent his entry was not right, he said.
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Khader said he was deeply hurt when the CPI-M office at Thokkottu was set afire and stones were thrown at buses in his constituency. Those incidents put a black mark on the culture and tradition of coastal Karnataka, he said.
The minister said he now realised he was wrong to make the "chappal" remark against people. "My friends and well-wishers also told me so, he said.
The remark invited widespread criticism from all quarters including from within his party.