Advocates were held in different parts of Chennai, Madurai, Coimbatore and other towns, even as they boycotted courts, demanding withdrawal of the amendments.
The protesters raised slogans demanding unconditional withdrawal of recently amended rules to the Advocates Act, which among others provides for disciplinary action against erring lawyers.
A Madurai report said around 200 lawyers blocked the Rameswaram passenger train at Railway Junction in the city for more than half an hour.
Madras High Court had last month issued a notification, making amendments to existing rules under the Advocates Act with a view to ensure peaceful conduct of court proceedings and suggest disciplinary action against erring advocates.
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As the lawyers protested against the amendments, Chief Justice SK Kaul had later said he would not act against lawyers in pursuant to the amended rules, but he could not prevent the Bar Council of India from proceeding against bar associations if they continued their agitation.
In Chennai, a group of 100 advocates were arrested when they attempted to block a train near the Beach Railway Station. They were later released.
A section of lawyers attended the court today despite the boycott call by the MHAA.
Meanwhile, the Registrar General of the high Court requested all subordinate court advocates to give up their protest and attend the courts as the high court had already constituted a five-judge committee to hear the suggestions from the Bar and modify the rules.