Karnaprayag is a town and municipal board in the Chamoli District in the Indian state of Uttarakhand. Karnaprayag is one of the Panch Prayag of Alaknanda River, situated at the confluence of the Alaknanda and Pindar River. From Wikipedia
The 14.57-km Devprayag-Janasu tunnel, part of the Rishikesh-Karnaprayag Rail Link, overcame severe geological challenges to achieve a breakthrough on April 16, 2025.