Baldirai is a town and tehsil of Sultanpur district, Uttar Pradesh, India.^[1] It consists of 99 villages (98 inhabited and 1 uninhabited) with a total population of 182,455 people, in 31,431 households.^[1]

As of 2011, Waldi Rai CD block has a population of 182,455 people, in 31,431 households.^[1] This population includes 92,058 males and 90,397 females.^[1] The corresponding sex ratio of 982 females to every 1000 males is slightly lower than the district rural average of 987.^[1] Members of the 0-6 age group numbered 27,598 as of 2011, or about 15.1% of the total.^[1] The sex ratio of this group is 930, which is slightly higher than the district rural average of 923.^[1] Members of Scheduled Castes numbered 40,828, or 22.38% of the total population; while members of Scheduled Tribes numbered 13, or 0.01% of the total.^[1] The literacy rate of Waldi Rai block as of 2011 is 67.04% (counting only people age 7 and up); literacy is higher among men and boys (78.02%) than among women and girls (55.96%).^[1] The Scheduled Castes literacy rate as of the same year is 53.56% (64.62% among men and boys and 42.25% among women and girls).^[1]

In terms of employment, 17.77% of Waldi Rai block residents were classified as main workers (i.e. people employed for at least 6 months per year) in 2011.^[1] Marginal workers (i.e. people employed for less than 6 months per year) made up 16.17%, and the remaining 66.05% were non-workers.^[1] Employment status varied according to gender, with 47.25% of men being either main or marginal workers, compared to only 20.40% of women.^[1]

Agriculture is the predominant source of employment in Waldi Rai block: 27.10% of the block's workers were cultivators who owned or leased their own land as of 2011, and a further 46.46% were agricultural labourers who worked someone else's land for wages.^[1] Another 5.85% were counted as household industry workers, and the remaining 20.59% were other workers.^[1]

Waldi Rai CD block has the following 99 villages:^[1]