Koro Kalyan is a village in Hasanganj tehsil in district of Unnao, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Koro Kalyan was 938 which includes 510 males and 428 females. Koro Kalyan covers 131.73 ha area. Pincode of Koro Kalyan is N/A.