Madurai (Tamil Nadu): At least 35 passengers were injured when three coaches of Chennai - Mangalore Express train derailed a few kilometres from Vriddhachalam, in Tamil Nadu. Railway officials and fire and rescue services personnel rushed to the spot and rescue operations were carried out. The injured were admitted to Government Hospital at Vriddhachalam. Following accident, all Chennai-bound trains from south Tamil Nadu have been diverted to run via Thanjavur and Kumbakonam.