Gurugram, Oct. 5 -- The National Highways Authority of India (NHAI) has awarded the tender to upgrade the sewer line from Rajiv Chowk to Sheeshpal Vihar on Sohna Road, with work expected to start at month-end and be completed in three months, an official said on Sunday. NHAI officials said the pipeline repair will use cured-in-place pipe technology. The sewer line between Rajiv Chowk and Sheeshpal Vihar is around three decades old and in a dilapidated condition. In the last three years, the Sohna Road has witnessed six cave-ins near Sheeshpal Vihar due to damage to the sewer line. "The tender for the repair of the road has been awarded, and work will start soon. We have sent the technical design to GMDA for approval. The drain will be repai...