Prime Minister Narendra Modi on Friday inaugurated one of the most ambitious railway projects ever built in India, which will connect the Kashmir Valley to the vast Indian plains by train for the first time.

Modi visited the Chenab bridge on Friday with tight security, waving an Indian tri-colour flag before boarding a test train that passed through picturesque mountains and tunnels to reach an inauguration ceremony for another high-elevation bridge named Anji.

Prime Minister Narendra Modi made his first visit to Kashmir on Friday since a conflict with arch-rival Pakistan, opening a strategic railway line to the contested region he called "the crown jewel of India".