The Maharashtra Metro Rail Corporation Limited (Maha-Metro), will begin digging tunnels, for the Range Hill to Swargate metro corridor which has a 5km underground stretch, in November.

According to Maha-Metro officials, a successful trial of the tunnel-boring machines has already been conducted and the final work of digging the tunnel will begin in November.

https://www.hindustantimes.com/pune-news/underground-tunnel-work-for-pune-metro-to-start-in-november/story-Ej8ptTomheXMg6QbisbzjI.html