From the search results, select the song you want to download. You can browse through the list of songs and choose the one you like.
That being said, if you're still looking to download Kasauti Zindagi Ki MP3 songs from Pagalworld, here's what you can do: Kasauti Zindagi Ki Mp3 Song Download Pagalworld
Select the MP3 format and quality you prefer (e.g., 128kbps, 320kbps, etc.). From the search results, select the song you
Click on the "Download" button to start the download process. From the search results