The Centre on Friday notified 40 questions - caste, place of Covid vaccination being two of them - to be asked of respondents during the population enumeration phase of the Census, set to begin from September 1 in snow-bound areas, a government order said. The order from Registrar General of India Mrityunjay Kumar Narayan notifies questions such as whether the person belongs to a Scheduled Caste or a Scheduled Tribe and their caste. The population enumeration in Ladakh and snow-bound non-synchronous areas of Jammu and Kashmir, Himachal Pradesh and Uttarakhand, will take place from September 1 to 30, according to a gazette notification issued earlier this month. "For the conduct of the above Census, there shall be an option for self-enumeration from August 17 to 31 just before the start of house-to-house population enumeration," it said. In the rest of the country, the population enumeration (PE) will begin next year.