"I think people have got right to represent their views and version in a democratic framework of the constitution only... They should do it in the democratic framework of the constitution," Sharma told reporters in New Delhi.
He was replying to a question on Shiv Sena activists blackening the face of Sudheendra Kulkarni over his refusal to cancel the book launch function of former Pakistan foreign minister Khurshid Mahmud Kasuri in Mumbai on Monday.
Mr Sharma's statement comes in the light of the attack being roundly condemned by political parties with BJP stalwart LK Advani saying it reflected "growing intolerance" in the country that is cause for concern.
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