Font Symbol replaced!!! change back!

[samarthmath]

Hey

So basically, a few months back, I'd tried to install the Indian Rupee symbol into my keyboard, what happened was, it replaced the ` with the rupee symbol,
now that single quote is a very frequent character, and it's annoying that it is replaced by the rupee symbol in my laptop.

I tried re-installing the fonts, went into the font manager, etc, nothing seems to work.

How can I replace back the symbol in fonts that got changed?

Thanks
Sam