there doesn't seem to be a clear connection between goon and the Hindi gunda. the thug sense originated in the U.S. in the Pacific Northwest around 1938; gunda predates it by ~10 years. the OED says this about goon, "Perhaps a shortened form of dial. gooney (GONY 1) ‘a booby, a simpleton’; but more immediately from the name of a subhuman creature called Alice the Goon in a popular cartoon series by E. C. Segar (1894-1938), American cartoonist."