The correct answer is: Jaipur.
Jaipur has been declared the cleanest railway station in the A1 category, as per 2018 cleanliness survey for Indian Railways. The survey was conducted by the Railway Board and covered over 7,000 railway stations across the country. Jaipur scored 91.58% in the survey, followed by Tirupati (91.38%), Jodhpur (91.28%) and Warangal (91.22%).
The survey was conducted on the basis of various parameters, including cleanliness of platforms, toilets, waiting rooms, foot overbridges, and other public areas. The stations were also evaluated on the basis of their cleanliness during peak hours and at night.
The cleanliness survey is conducted every year by the Railway Board to improve the cleanliness standards of railway stations across the country. The survey results are used to identify the areas that need improvement and to take corrective measures.
The cleanliness of railway stations is important for the convenience of passengers and for the image of the Indian Railways. The survey results show that the Indian Railways is making efforts to improve the cleanliness standards of its stations.