The newly introduced metro rail services between Koyambedu and Alandur is now fully functional and Chennaites are using these services regularly.
Now with regard to other corridors, it was originally planned as under:
Corridor III - Madhavaram - Perambur - Ayyanavaram Purasawalkam - Nungambakkam High Road - Gemini - Radhakrishnan Salai - Luz - Lighthouse (17 Km)
Corridor IV - Koyambedu - Saligramam - Vadapalani -Kodambakkam - Panagal Park - Nandanam - Luz - Mandavelli - Adyar - Besant Nagar - Thiruvanmiyur Kottivakkam - Injambakkam (27 Km)
Corridor V - Madhavaram - Kolathur - Villivakkam - Anna Nagar west Mogappair - Maduravayal Valsarwakkam - Trade centre OTA -Adambakkam - Madipakkam - Keelkattalai - Medavakkam Perumbakkam (32 Km)
The Chennai Metro Rail is considering extending it so that the corridor from Madhavaram that currently ends at the Lighthouse could be extended up to Siruseri. This is to cater to the substantial number of IT employees who live in apartment complexes along the route. Sources added that plans are on to integrate it with Thiruvanmiyur MRTS station. Besides this, there are also plans to rework the other two corridors as well.
New Proposed Alignment is as under:
- Total length: 88km
- Approx Cost: Rs 45,000 crore
- Corridor III: Madhavaram to Siruseri (41km)
- Corridor IV: Koyambedu to Light House (14km)
- Corridor V: Madhavaram to Perumbakkam (33km)