India, April 4 -- The National Highways Authority of India (NHAI) has again raised concerns about the safety of a portion of the Dwarka expressway, where the Gurugram Metropolitan Development Authority (GMDA) is laying a water pipeline between Elan Mall and the cloverleaf on NH48, an official said.

The NHAI said the pipeline-laying method has resulted in multiple distress manifestations, posing a threat to the structural integrity of the expressway.

It has sought immediate intervention to prevent any cave-in on the expressway.

Mohd Saifi, regional officer, NHAI, in a letter to GMDA on March 23, stated, "It is evident that the methodology adopted by GMDA for execution of the trenchless pipeline works does not appear to be appropriate or...