India, Feb. 7 -- A video of a British traveller expressing surprise at the low ticket prices of the Delhi Metro has gone viral on social media, with the tourist praising cleanliness, efficiency and modern design, and even comparing the capital city's metro system with the London Underground.

Taking to Instagram, Rory Porter shared a video documenting his first ride on the Delhi Metro's Blue Line. The video captures his real-time reactions, from entering the station to observing fellow commuters. But it was the fare that appeared to surprise him the most.

"For a half-hour journey, it's just Rs.43 (0.35 pounds) for a half-hour journey," he said in the clip. "Very, very cheap. Probably one of the cheapest metros I've been on in the world,"...