April 26 , 2025
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	- This longest transport tunnel in India Spanning a length of 14.58 km and known as tunnel no. 8, or the Janasu tunnel.
- This falls on the Devprayag to Janasu stretch of the Rishikesh-Karnaprayag line (Uttarakhand).
- The Rishikesh-Karnaprayag rail link project is 125.20 km long. 
- Of this, 104 km or 83 per cent of it is in the form of tunnels.
- At present, the longest rail tunnel in India is 12.75 km long, between Khari and Sumber Stations on the Katra-Banihal Section of the Kashmir line.
- The longest road tunnel is the Atal tunnel on the Manali-Leh highway, which is 9.02 km long.

                                 
                            
                                
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