Larsen & Toubro Ltd (L&T) has secured two design and build contracts worth Rs 203 crore from Delhi Metro Railway Corporation (DMRC) for construction of underground station at Saket in Delhi and a tunnel as part of its phase-II project.

The new station and tunnel will come up between Central Secretariat and Qutub Minar corridors of Delhi Metro.

To be completed in 30 months, the construction of the Saket station involves 1,500 metres of tunnelling. The length of the station will be 284 metres.

In addition, the construction involves a 945-metre link tunnel and a 260-metre ramp, both of which to be completed in 24 months.

The new orders come close on the heels of the Rs 355-crore phase-II orders secured by L&T, in the same corridor during last fiscal.

Earlier, L&T in a joint venture with international contractors completed an Rs 1,940 crore project of underground metro rail corridor from Central Secretariat to Kashmere Gate.

Methods adopted

Top down construction method will be adopted for the underground station at Saket, while cut and cover method will be used for tunnelling and NATM (New Austrian Tunnelling Method) for 185 metres of twin tunnel.

L&T is presently executing the Udyog Bhavan and Green Park stations along with the construction of one km long tunnel by cut and cover method. L&T is also executing yet another contract, in joint venture with Dywidag, Samsung, Shimizu and IRCON for construction of two underground stations at Hauz Khas and Malviya Nagar with a 3.10-km long tunnel using tunnel boring machines. These projects are slated for completion by 2010 for the Common Wealth Games in New Delhi.