New Delhi, March 11 -- The first phase of Census 2027 - the house-listing exercise - will begin in the New Delhi Municipal Council (NDMC) and Delhi Cantonment areas from April 15. Election authorities have written to the Delhi government seeking exemption for booth level officers (BLOs) from census-related duties, as the Special Intensive Revision (SIR) of electoral rolls is also expected to begin next month.

The house-listing process will start in areas under the Municipal Corporation of Delhi from May 15, officials said.

The government has notified the questionnaire for the first phase of Census 2027 - the house-listing and housing schedule - which includes 33 questions.

The exercise will record details such as the ownership status o...