Warner Bros. filed a lawsuit against Mumbai-based studio Mirchi Movies, who are set to release a film entitled Hari Puttar - A Comedy of Terrors, which follows the life of a 10-year-old Indian boy who moves to Britain, on 12 September.
However, Warner Bros. believes the name is too similar to the title character of the hugely popular wizard franchise, whose latest film, Harry Potter and the Half-Blood Prince, has been pushed back for release until next year.
A spokesperson for Warner Bros. says, "We have recently commenced proceedings against parties involved in the production and distribution of a movie entitled Hari Puttar.
"Warner Bros. values and protects intellectual property rights. However, it is our policy not to discuss publicly the details of any ongoing litigation."
But Mirchi Movies bosses disagree there are any copyright conflict.
The studio's CEO, Munish Purii, says, "... we registered the Hari Puttar title in 2005, and it's unfortunate that Warner has chosen to file a case so close to our film's release. In my opinion, I don't think our title has any similarity or links with Harry Potter."
The case is due to be head in the Bombay High Court on 25 August.