first adress the HR.dont adress the HR as sir.ok then tell 
about ur self.dont tell this is varun or some other name.
"this" is used for objects.simply tell i am varun.dont use 
tough words to impress the HR.tell as simple as 
possible.then after tell about ur qualifications.dont start 
coming to my family background that wont be good.then tell 
about ur family.just start my family comprises of four or 
five ur wish.ok then tell about u r hobbies.dont stammer 
when telling the hobbies.then tell about ur interests.ur 
strengths, weakness,ur favourite dish,ur embrassing 
moment,ur happiest moment,ur unforgettable moment,.at last 
tell about ur GOAL