Most copies floating around the internet are DVD-rips from 2002—grainy, 480p, and with muffled audio. An "exclusive" download implies a Blu-Ray Remux.
Instead of gambling with virus-laden "exclusive" sites, consider this hybrid approach:
This takes 10 minutes and guarantees no malware, perfect sync, and total control over quality.
Open the file in VLC Media Player. Go to Tools > Codec Information.
A "Dual Audio" file means the video container (usually an MKV or MP4) holds two audio tracks:
This allows viewers to switch languages on the fly. Purists can enjoy Will Smith's original voice, while families or casual viewers can switch to Hindi without changing the video file.
If you find a file labeled "Men.In.Black.1997.1080p.BluRay.x265.Dual.Audio.Hindi.English.ESub" , here is how to verify its quality: