Question

On which platform should i get videos based on Olympiads like NSO and IGKO​

Answer 1

Answer:

There are unfortunately no videos for concepts related to preparations for Olympiads mostly on youtube.

For maths I recommend only one channel for Olympiad level of preparation, you may search Osman Nal on youtube and you can refer to his videos.

For science, that is physics chem and bio I suggest you should focus on buying specific Olympiad books and refer to written solutions in the book or somewhere on google

So, for Olympiads focus more on solving and watching a huge variety of sums rather than videos of concepts.

For physics, though I'll suggest you watch Professor Walter Lewin's channel for deeper understanding of concepts and excellent relevant demonstrations showing immediate applications of concepts.