About 50 lawyers shouted slogans in support of the farmers' demand and wanted both the Centre and state government to implement their charter of demands, police said.
Meanwhile, a group of farmers staged picketing at Palladam in nearby Tirupur district and expressed solidarity with their agitating counterparts in Delhi.
They held placards seeking immediate constitution of Cauvery Management Board and also to link rivers in Southern states.
Stating that the drought relief announced by the Centre was very meagre to tide over the crisis, association president Ponnusamy said the state government should at least provide a compensation of Rs 25,000 per acre.
A delegation would soon meet chief minister Edappadi K Palaniswami in this connection, he said.