It looks like you're asking for a related to a file or a hypothetical release of "Bachna Ae Haseeno" (the 2008 Bollywood film) labeled "123mkv" — which typically suggests a compressed 1080p/720p MKV rip from a torrent or file-sharing site.
It looks like you're asking for a related to a file or a hypothetical release of "Bachna Ae Haseeno" (the 2008 Bollywood film) labeled "123mkv" — which typically suggests a compressed 1080p/720p MKV rip from a torrent or file-sharing site.