Line 4 (Chennai Metro)

Yellow Line (Line 4)
Overview
StatusUnder Construction
Termini
Connecting linesOperational (3):
Blue Line Green Line  Chennai MRTS 
Upcoming (2):
Purple Line Red Line
Stations(Under construction) 28 + 17 (planned) Total = 45
Service
TypeRapid transit
SystemChennai Metro
Operator(s)Delhi Metro Rail Corporation (DMRC)
Technical
Line length26.1 km (16.2 mi)
Number of tracks2
Character10.1 km (6.3 mi) Underground
16 km (9.9 mi) Elevated
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrification25 kV 50 Hz AC overhead catenary
Route map

Lighthouse
Kutchery Road
Thirumayilai Purple Line
Alwarpet
Bharathidasan Road
Boat Club
Nandanam on Blue Line
Nandanam
Panagal Park
Kodambakkam
Kodambakkam Powerhouse
Vadapalani on Green Line
Vadapalani
Saligramam
Saligramam Warehouse
Alwarthirunagar Red Line
Valasaravakkam Red Line
Karambakkam Red Line
Alapakkam Red Line
Porur
Porur Bypass
Thelliyaragaram
Iyyapanthangal
Kattupakkam
Kumananchavadi
Karayanchavadi
Mullaithottam
Poonamallee
Poonamallee Depot
Poonamallee Bypass
Planned
Nazarathpet
Chembarambakkam
Kuthambakkam Bus Terminus
Samathuvapuram
Chettipedu
Thandalam
Irungattukottai SIPCOT
Pennalur
Sriperumbudur
Pattunool Chatram
Irungulam Industrial Estate
Mambakkam
Tirumangalam
Sunguvarchatiram (RRTS )
Parandur RRTS

The Yellow Line or Line 4 is one of the under construction lines of Chennai Metro Phase-II stretching from Lighthouse to Poonamallee Bypass. The line will consist of 27 stations, out of which nine will be underground and 18 will be at grade or elevated. The colour code of the corridor was changed from Orange to Yellow, as per latest CMRL's latest Phase-II map.