A: No. As of this writing, Triangle is not streaming on Netflix India in any language.
Amazon Prime has fluctuated the rights to Triangle over the years. Sometimes it is available only in English with subtitles. Occasionally, a Hindi dubbed track is added. Search for "Triangle 2009" specifically. If the thumbnail shows a ship or a woman looking into a mirror, click on it. Go to "Audio Settings" and look for "Hindi." If it is there, you are lucky. triangle movie available in hindi