The protestors were members of Federation of South India Farmers Associations.
They were let off in the evening, police said.
Modi, who was in the city to campaign for BJP, charged the two Dravidian parties – DMK and AIADMK – with keeping Tamil Nadu under their “control”.
Without naming either party, Modi said the two had come to power alternately, “sometimes this (party) and sometimes the other,” and they had kept Tamil Nadu under their “control”.
“People of the state want to be freed from them. And the turnout is a statement to that,” he said addressing the election rally.
He said corruption has “ruined” Tamil Nadu and that none of the schemes or their benefits would reach the poor if graft was not done away with.
Engaging the audience, Modi asked them if they had power supply 24 hours a day, to which they replied in the negative, and then alleged that people of the state had no access to clean drinking water despite 67 years of Independence.
Last Updated 31, Mar 2018, 6:51 PM IST