It’s my week for asking for help!

For my homestudio, I need to soundproof acoustically treat a small area, and for that I need some of that egg-carton shaped foam that is usually used for packing things like motherboards.

Some pics:

Note – I do *not* need cardboard egg-cartons. I know where to get those, but I dont want those

Does anyone know of a source in Bangalore where I can buy this stuff? Please let me know. I need about 200 sqft of it. The thicker the better.

Thanks!

[Update] Corrected the classic newbie mistake of mixing up “soundproofing” and “acoustic treatment”. I am lucky to have neighbours who quite enjoy the noise, and have no complaints. What I am trying to do is correct a problem with the internal acoustics of the place.