How to edit a keyboard layout for a language in Xubuntu?

I want to edit the keyboard layout for the language Nepali. That's for fixing a weird inconvenience.

The way the layout works is that every key is assigned a non aspirated Nepali consonant and by pressing the key with Shift, you get the aspirated versions. Except, not with the key 'C' for some reason. The expected output from it would be 'च'(t͡s) and pressing 'C' with Shift should give 'छ'(t͡sʰ) but no, it's the opposite.

So, how do I fix it and get rid of this problem? And, why is it like this in the first place?

Solution 1:

For such a small change I would suggest that you simply open the /usr/share/X11/xkb/symbols/np file for editing and make the desired change.