Download the tone and use (or Finder on macOS) to convert it to AAC, rename it to .m4r .

Use a trusted audio trimmer app (like AudioLab or MP3 Cutter on Android, or GarageBand on iOS).

This is generally the safest and fastest way to find niche ringtones. While specific apps for "Byomkesh Bakshi" might be scarce, generic ringtone aggregators are your best bet:

Download the MP3 on your computer and import it into .

If you have a specific scene or theme from a YouTube video that you love, you can use a safe YouTube-to-MP3 converter. Once you have the file, use a ringtone cutter app to select the best 30-second loop.

I can provide tailored instructions or direct audio search strings based on your preferences. Share public link

Setting a custom ringtone on iOS is more technical, usually requiring the app. However, you can also use third-party apps from the App Store (like "Bollywood Ringtones for iPhone") to download and set tones directly without a computer.

: Hosts various fan-uploaded Byomkesh Bakshi theme soundtracks and playlists that can be accessed for streaming or identification. Popular Ringtone Variants

If you are looking to perform this search immediately, it is recommended to search for "Byomkesh Bakshi DD National Theme MP3" rather than generic terms, to ensure you get the authentic 90s version and avoid modern remixes.

Trim the audio down to the best 20 to 30-second window (ideally the main hook or the flute crescendo). Step-by-Step Guide to Setting Your New Ringtone