EAR TRAINING – restricted set: C major scale, omissions

Researches say, Memory apps used by elderly people claim to improve the memory, but instead just makes them better at using the app.
Similarly, random interval ear training feels alien to me, even though I can identify notes and intervals on the guitar, for songs, chords etc…

For Indian music on guitar, I suggest ear training closer to the final music we are trying to figure out and play.
Starting from the same point, how high or low is the next note, for example.

The below exercise tells you the set of notes that will appear in the exercise. You just have to figure out which ones are omitted. This is much less overwhelming and closer to real life applications leading to results we want.