The Tullu Tunnel was one of the first “double‑track” tunnels built in South India, using a combination of manual drilling and early dynamite blasting. Its construction required the labor of over 2,500 workers , many of whom were local tribal communities.
Many Indian government departments, railway heritage societies, and tourism boards compile that bundle together: kannada tullu tunne images pdfl link
The keyword "Kannada Tullu Tunne images PDF link" suggests users are looking for a compiled, downloadable document containing visual depictions. There are three possibilities: The Tullu Tunnel was one of the first
"Tullu Tunne?" Rohan repeated, raising an eyebrow. "Doesn't that mean ' wet eyes' in Kannada?" railway heritage societies