Context :

• The Southern Railway has bagged the number one position for cleanliness in the country.
• This achievement was under the category of other than Premium Category trains in the recent Trains Cleanliness Survey conducted by IRCTC on all India level.
• During the year 2018, Southern Railway’s gross earnings also stood at more than six thousand crores rupees which is almost 10 per cent higher than the last year earnings.
• To cater to the growing demands of passengers, Southern Railway has also introduced 54 trains over past four years.

Who conducts Trains Cleanliness Survey?

• a. IRCTC
• b. Quality Council of India
• c. Ministry of drinking water and sanitation
• d. None

what role can Indian railways play to achieve the goal of clean India?