A test run between Thirumangalam and Koyambedu was conducted by the Chennai Metro Rail authorities.
For the 1st time ever in Tamil Nadu, the experts from the Chennai Metro Rail Project have been successful in conducting the test run in the underground tunnel section between Koyambedu and Thirumangalam.
A single coach was added to the engine and the test was conducted between Koyambedu and Thirumangalam.