Family name Kalai Chelvan (Kalai Chelvan 
) , in the world, is a very rare cognomen. The last name Kalai Chelvan is habitual in South-eastern Asia, particularly Singapore, where it is a very rare surname, and Malaysia. Likewise, Kalai Chelvan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalai Chelvan | India, Malaysia, Singapore |