Technically possible, but legally ambiguous. YouTube’s terms of service prohibit downloading unless a download button is provided. It’s safer to use legal streaming apps with offline modes.
So go ahead—open Gaana, Spotify, or Apple Music. Search for "A" and start listening. From Ae Dil Hai Mushkil to Zaalima , the entire history of Bollywood is waiting for you, legally and safely. Bollywood Hindi Movie A To Z Mp3 Song Download