Add a IIS Rewrite rule to change absolute path to Lowercase

I am trying to add a IIS rewrite rule update the absolute path in the url- So This is the url-

http://www.example.com/ABC
http://www.example.com/AbC
http://www.example.com/Abc
http://www.example.com/abC
http://www.example.com/abC/ui/dashboard?a=SomeText 

And I am trying to change it to

http://www.example.com/abc
http://www.example.com/abc/ui/dashboard?a=SomeText

I am not familiar with the IIS rules. Any help will be appreciated. Thanks in advance!