1. Open a web browser and go to a music streaming service of your choice, such as Spotify, Gaana, or Apple Music.
2. Search for "Yeh Rishta Kya Kehlata Hai" or the specific song title you want to download.
3. Once you find the songs you want, click on the "Download" or "Add to Library" button.
4. The song will be downloaded to your device.
5. Repeat steps 2 and 3 for all the songs you want to download.
Note: The availability of songs may vary depending on the streaming service you are using. Some songs may be available for streaming only and may not be downloadable.