Krishnan and Kumaran, both brothers from Theni district, and Aravind of Coonoor in Nilgiris District, who were arrested in a theft case, escaped by scaling the prison wall, they said.
Following this, check-posts were alerted and additional police deployed at strategic points to prevent the three from crossing the district border, police said.
On information that the under-trials were hiding in a tea estate, police personnel tried to catch them with the help of locals.
However, the policemen overpowered the three and took them into custody.
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