Hello krishna_raj26,
First & Foremost are YOU clear about why you want to change the job?
If you are not, then I suggest YOU THINK VERY CLEARLY & HAVE CLARITY ON THE REASONS WHY YOU WANT TO CHANGE. Then--I can bet anything on this--you will have the answer on what to tell the Interviewer without the need of anybody guiding you.
If you are clear on why you want to change, then you already have the answer to your query. If you still want any specific advice on this Forum, suggest mention clearly why you want to change. Then the most appropriate advice would be forthcoming.
Last, but not the least, I suggest you stop focusing on 'pleasing/impressing' the other person--whether it's this interview or any other interaction. No one has any idea of the nature of the Interviewer & how do you think anyone can give you 100% foolproof advice? For all you know, the very advice which would have worked @ one interview may be totally counter-productive @ another.
Also pl note that what I have mentioned so far above is about "what", NOT 'how'. So even though what you may be saying makes perfect logical sense, if if you don't say it in a pleasing manner with clarity, the chances of your effort going waste are high.
All the Best.
Rgds,
TS