Explanation:

The Pink City of Jaipur has India's most clean railway station, followed by the royal city of Jodhpur ( Railway Cleanliness Survey 2019). The little-known Durgapura railway station, also in Jaipur city, is at No. 3. Together, all the top three spots have been captured by the desert state of Rajasthan, which is known to be a tourist hotspot for its natural beauty, rich culture and royal heritage links. Rajasthan has four other railway stations in the top 10 list: Gandhinagar-jp, Suratgarh, Udaipur and Ajmer.