A special court sentenced P Balakrishna Reddy to 3 years' imprisonment & and imposed a fine of Rs 10000 for damaging buses with stones in 1998.
Following the conviction, Reddy, the Minister for Youth Welfare and Sports Development, submitted his resignation from the ministry and it was accepted.
Reddy, who represents Hosur constituency in the state assembly, is the first minister to have been convicted by the special court.
The portfolio held by him has been allocated to School education minister Thiru KA Sengottaiyan.