Karai is a village in Akhand Nagar block of Kadipur tehsil in Sultanpur district, Uttar Pradesh, India.

[3] The 1951 census recorded Karai as comprising 1 hamlet, with a total population of 426 people (217 male and 209 female), in 71 households and 71 physical houses.

[4] The 1961 census recorded Karai as comprising 2 hamlets, with a total population of 451 people (218 male and 243 female), in 79 households and 75 physical houses.

[6] The 1991 census recorded Karai as having a total population of 953 people (479 male and 474 female), in 127 households and 110 physical houses.

[3] The breakdown of main workers by employment category was as follows: 161 cultivators (i.e. people who owned or leased their own land); 20 agricultural labourers (i.e. people who worked someone else's land in return for payment); 0 workers in livestock, forestry, fishing, hunting, plantations, orchards, etc.