a few weeks ago i saw a post on website about chambao's rosa maria being copied. I started listening to the group's songs and came across their song "Duende del Sur" ...
which is uncomfortably similar to the movie kudrat (1998) song "tujhe dene ko mere pass kuch nahi" (The hook starts at 0:50)
so either chambao copied the indian song or chambao's song is inspired by another flamenco tune, which makes the indian song a copy.
If someone knows more about this please share. Thanks.