Kodinhi has an unusually high number of twins born there every year. For a village with only 2000 people, there are 204 pairs of twins, with about 15 pairs being born every year. Approximately 10% of the town's population are twins.
For every 1,000 births in Kodinhi, 45 are twins. Compared to the rest of India where the twin birth rate is 4 out of every 1,000.
Women who marry men from outside Kodinhi, and men who marry women from different villages, still report high rates of twin births.