He emphasised on the ranking during a review meeting with the mayors of all the three civic bodies here.
"The three municipal corporations in Delhi should improve their sanitation rankings and move up the ladder in the next Swachh Survekhan Survey," Naidu said.
The minister also urged them to work on installing high visibility signages for public toilets on the lines of New Delhi Municipal Council.
Besides the mayors -- Kamaljeet Sehrawat (SDMC), Preety Agarwal (NDMC) and Neema Bhagat (EDMC), municipal commissioners of the north and south corporations and other senior officials were also present.
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The South Delhi Municipal Corporation (SMDC) in a separate statement, however, today claimed that the "Union Ministry is willing to release Rs 100 crore each to the three corporations for purchase of vital machines required to accelerate works under the Swachh Bharat Abhiyan."
"Introduction of night sweeping for cleanliness in the corporation areas and employing mechanical night sweeping machines for the same be also looked into," he said.
The minister assured that necessary support will be extended in the efforts of making the city 'Swachh Delhi'.