Parsik tunnel
The 425th longest tunnel in the world
The Parsik Tunnel is a 1.31678 km (0.81821 mi) long electrified dual-line railway tunnel located in Parsik Hill to the east of Thane, Maharashtra. It is a part of the Central line. This tunnel bypasses the Kalwa and Mumbra railway stations, making it a fast line between Thane and Diva Junction. The west exit of the tunnel is to the southeast of the Kalwa station, while the east exit is to the south of the Mumbra station.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).