India, July 5 -- A link road connecting the Ganga expressway with the Sonic toll plaza in Unnao was damaged in the season's first spell of heavy rain, raising fresh questions over the quality of construction barely two months after the Rs.12,000 crore expressway was inaugurated.

The seven-metre approach road on the Meerut-Prayagraj carriageway near kilometre 421 developed a washout after rain on Friday, with soil along the embankment eroding and part of the carriageway collapsing. By Saturday, more soil had been washed away from the roadside, a traffic sign had fallen, and sections of the roadside drain were found damaged.

The damaged stretch was repaired on an emergency basis on Friday and Saturday. However, fresh erosion at the same l...