The decks have been cleared for the further expansion of Chennai Metro Rail with the State government announcing that the viability of three new corridors is being explored. A detailed project report will soon be undertaken by the consultant, Delhi Metro Rail Corporation, to determine the feasibility of the corridors between Moolakkadai-Thirumangalam; Moolakkadai-Thiruvanmiyur; and Luz-Poonamallee through Iyyappanthangal.
Mylapore — Luz — Teynampet — T Nagar — Vadapalani — Saligramam — Iyyapanthangal — Poonamallee
Source:
http://www.thehindu.com/news/cities/Chennai/article1095610.ece
http://en.wikipedia.org/wiki/Chennai_Metro