In the context of film releases and file sharing, the string you provided— koyla -1997- - dvdrip - x264 - 5.1 aac - drc subtitles —is a standardized naming convention that describes the quality and technical properties of the 1997 Bollywood film
Piracy is neither condoned nor necessary. Here are to get an equivalent or better experience: koyla -1997- - dvdrip - x264 - 5.1 aac - drc subtitles