Read the following statements carefully:
1.The largest pan-India rural sanitation survey will commenced on 1st December 2018 under the Ministry of Drinking Water and Sanitation.
2.It will also rank districts based on their sanitation level.
3.The criteria set for ranking includes construction and use of toilets under the Swach Bharat Mission- Gramin, direct observation of sanitation at public places and feedback from citizens.
Which of the above statements is/are correct?