The English Blu-ray is legally available on Amazon (US/UK) and can be shipped to India. You can then watch it with English or Tamil subtitles (though the audio will be English).
The file name "Www.tamilrockers.com - The Three Musketeers -2011- Tamil - Bd-ri" indicates an illegal, pirated, high-definition copy of the 2011 Paul W.S. Anderson film circulated by the notorious TamilRockers group. This, and similar, content is typically accessed via illicit, security-risking torrent networks rather than authorized, legal streaming platforms. For more information on the risks associated with this site, visit TamilRockers on Wikipedia The English Blu-ray is legally available on Amazon