India, March 25 -- In a serious case raising safety concerns, a six-inch hole was allegedly created in an underground metro tunnel on the Shivajinagar-Swargate stretch during unauthorised borewell drilling at a residential property in Shukrawar Peth.

According to officials of Maharashtra Metro Rail Corporation Limited (Maha-Metro), the incident occurred on March 14 near house number 415 on Shivaji Road, opposite Khadak Police Station. The drilling activity is suspected to have punctured the tunnel passing beneath the area.

Based on a complaint filed by Santanu Gauratra, joint general manager (civil), Pune Metro Rail Project, police said the Shivajinagar-Swargate corridor consists of twin tunnels, each about 6.4 metres in diameter and lo...