Do not play the note straight. Add a slight oscillation (vibrato) only at the end of the long notes, not the beginning. For example, on the high "Maula," let the note ring cleanly for two beats, then add a slow, wide vibrato.
You cannot play this song like a Western etude. Here is how to nail the style:
Learning "Maula Mere Maula" on the violin is not a quick win. It will test your intonation (those half-steps are tricky) and your expressive maturity. But the first time you play the chorus cleanly with a backing track, you will feel why this song is a classic.
Here is a simplified excerpt of the main hook (Antara) in the key of A minor: