The term "chango" appears not only in the toponymy, but also in the documents of the colonial era alluding to the Indian fishermen.
Sri Lanka has denied attacking Indian fishermen even though they are found fishing in their waters.
Indian fisherman once filled similar boxes with fishing gear, wedged them into the bow of a canoe, then tied them down.
In one such incident last year, an Indian fisherman was killed by gunfire from a Navy frigate.
He was one of the chief negotiators of a 1985 Federal court agreement in a 16-year-old dispute between commercial Indian fishermen and sports anglers.
There have been several alleged incidents of firing on Indian fishermen fishing in Palk Bay.
Indian fishermen crossing into Pakistan face a similar fate.
Indian and non-Indian fishermen, usually at odds over division of the fish runs, are in agreement that the sea lions must go.
The firing has reportedly resulted in the death of two Indian fishermen.
Indian fishermen were only allowed to dry their nets and use Church for religious observance.