Sections
Beach — Tambaram
* This section has 2 dedicated lines for the suburban train operations apart from 2 main lines for mixed traffic. * EMUs are operated along 3rd and 4th main lines during peak hours. * 12-car EMU are operated in this sector.Tambaram — Chengalpattu
* This section has 2 dedicated lines for the suburban trains operations apart from 1 main line for mixed traffic * 4th line is planned. * 12-car EMU are operated in this sector.Chengalpattu — Kanchipuram — Arakkonam
* This section has decidated 1 line for the suburban trains and mixed traffic * 2nd line is planned * 12-Car EMU is operated in this sector {{Railways in Southern India Chennai Suburban Railway