Downloading high-quality video files directly is restricted on most platforms to protect copyrights. However, you can save them for offline viewing or download the audio legally: Streaming Apps (Offline Viewing) : If you have a premium subscription to YouTube Premium Apple Music
Chikni Chameli (Full Song Video) - by Ajay-Atul - Apple Music
: If you primarily want the high-quality audio (up to 320kbps), you can use Song Details
Chikni Chameli (Full Song Video) - Music Video by Ajay-Atul & Shreya Ghoshal - Apple Music. Apple Music