I Mean even though if user wants to have full access it should be 700 not 600 read-4,write-2,execute-1 total 7 and group and others 0 so it would be 700 Ritesh Kumar Nayak

Your understanding is correct. But there is a very thin difference between 600 and 700 . Please visit the stackoverflow link that I have pasted. It will help!

Ok sure thanks i will check Ritesh Kumar Nayak