It may also be known by these other names depending on the region:
* Bombay Duck
* King Mackerel
* Spanish Mackerel
* Chinna Vajaram (for a smaller variety)
* Red Snapper (in some areas, though this is not technically correct)
The best way to ensure you're referring to the same fish is to specify "Indian Mackerel" or use the scientific name, Rastrelliger kanagurta.