proper noun is the name of particular person, place ,things and animals name ,is called proper noun
ex :- person name - Manoj ,Rohit , Gandhi ji
things name - supreme table , chair ,cello pen
animals name - kid of dogs name is Pintu , Chintu
The Tajmahal , The Red fort , etc
note
1. proper noun always starts with capital letters
2. proper noun does not take 90% articles
3. proper noun takes 10% articles in some cases
like - A Mr.Rohit gives me this mobile for you
in the above sentence you will see - a proper noun A MR MOHIT starting with an articles
because a person does not know about any thing except his /her name
in this situation we can use an articles before the proper noun.
you are a Salman khan
In this sentence you will see that you are not a Salman khan but your personality look like as a Salman khan so in this case we can use articles a
EXERCISE
rohit is a doctor (wrong)
A manoj is an IAS ( wrong )
A Mr. Rohit is a business man (right )
(Rohit , Manoj )