India again extends bidding for tunnel boring at 800-MW Parbati 2

India’s NHPC Ltd. has again extended the deadline for bids for completion of headrace tunnel civil works including excavation by tunnel-boring machine at the 800-MW Parbati 2 hydroelectric project. Bids now are due November 20.

NHPC previously called for bids by October 30, August 31, and August 7. NHPC also has issued another solicitation for Lot PB 2B, completion of civil works of a headrace tunnel at Parbati 2, specifying a drill and blast method plus hydro-mechanical works. Those bids are due November 23.

Most recently, the developer is extending the deadline for Lot PB 2A, excavation by tunnel-boring machine of about 4,849 meters of 6-meter-diameter tunnel. Work also includes concrete lining of 8,972 meters of the tunnel. The work is expected to require 48 months, down from a previous estimate of 58 months.

Tender documents may be obtained from NHPC’s Internet site, The deadline for obtaining documents also was extended again until November 19 from the address below upon payment of 10,000 rupees (US$176) by demand draft to NHPC Ltd. at Faridabad. An additional 500 rupees (US$8.80) is charged for mail delivery.

Bids now are due by 2:30 p.m. November 20. For information, contact B.B.N. Subudhi, Chief Engineer (CC-IV), Contracts-Civil Division, NHPC Ltd., 2nd Floor, NHPC Office Complex, Sector 33, Faridabad 121003 Haryana, India; (91) 129-2270596; E-mail:; Internet:

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