Wire strippers are easy. Get something that looks like
this one. This type of wire stripper is cheap since it's not a precision instrument (doesn't need to be), but it works quite well. Anything that looks vaguely like that is going to work
. A 26-16AWG one probably covers most of your needs.
As for side cutters, I don't really know which brands you can get over there. I mean, Knipex is a nice brand, but I doubt you can get them in Nepal
But maybe you have a local hardware where you can inspect the cutters before buying them?
What I can say is that small flush side cutters are quite nice for electronics, but they're a bit delicate and only suitable for small and soft stuff. If you use them for large cables or hard materials you'll ruin them quickly, so if you need to do that kind of cutting, use a more robust diagonal cutter.
These btw are crap, as I found out:
https://www.sparkfun.com/products/8794 If you see a spring mechanism like that, avoid, they'll have cut costs on the other parts too.