Hello ma’am

If you do not wish to claim any reservation and apply as a UR student only, then you don’t need to do anything. Every student by default is considered in UR and can contest for those seats In any college of the country. You should just have the marks appropriate as per the cutoffs for that particular college.

You can mail the concerned authorities and check FAQs on the official sites for more information.

I wish you the best of luck!