The correct answer is Visakhapatnam.

According to Swachh Sarvekshan Report 2017, Indore in Madhya Pradesh has been selected as the cleanest city in India.

• It is followed by Bhopal, Madhya Pradesh, and Visakhapatnam, Andhra Pradesh.
• This survey was carried out by the Quality Council of India in 434 cities across the country.

• Swachh Survekshan is a ranking exercise taken up by the Government of India to assess rural and urban areas for their levels of cleanliness and active implementation of Swachhata mission initiatives in a timely and innovative manner.
• The objective of the survey is to encourage large-scale citizen participation and create awareness amongst all sections of society about the importance of working together towards making towns and cities a better place to live. the survey also intends to foster a spirit of healthy competition among towns and cities to improve their service delivery to citizens, towards creating cleaner cities and towns.
• Swachh Survekshan 2020 is the fifth edition of the annual cleanliness urban survey conducted by the Ministry of Housing and Urban Affairs (MoHUA), Government of India.
• In the fifth edition of the annual cleanliness survey (Swacch Sarvekshan) of the country in 2020, Madhya Pradesh's Indore was placed on the first spot, Gujarat's Surat on the second spot, and Maharashtra's Navi Mumbai on third.
• Swachh Survekshan 2020 surveyed a total of 4242 cities, 62 Cantonment Boards, and 97 Ganga Towns and saw unprecedented participation of 1.87 crore citizens.