New Delhi, Oct 29 (IANS): Delhi Metro Rail Corporation Chief Mangu Singh Tuesday inspected the ongoing underground Metro constructions in South Delhi, said an official statement.

Mangu Singh visited the construction sites at South Extension, INA market, Sarojini Nagar and Bhikaji Cama Place to oversee the Phase-III work progress and the traffic diversion plans being executed by Delhi Metro at these intersections.

He interacted with the engineers and asked them to take care of the lighting along the barricades and the traffic issues caused by the construction work.

He told the engineers to lay special emphasis on providing walkways along the Metro sites for pedestrians and easing traffic movement for commuters.

DMRC started the underground tunnelling work earlier this month by lowering the first Tunnel Boring Machine (TBM) at INA market.

The DMRC is slated to construct 53 km of underground Metro lines, with 74 tunnels, during Phase-III for which about 34 TBMs are expected to be used.

The tunnelling work between Central Secretariat and ITO on the 9.37-km long Central Secretariat-Kashmere Gate corridor has been completed.

Delhi Metro is currently constructing another 140 km of Metro network which it aims to complete by 2016.