Hello Krishna_raj26,
First and foremost, are you clear about why you want to change jobs?
If you are not, then I suggest you think very clearly and 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 for 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, please mention clearly why you want to change. Then the most appropriate advice would be forthcoming.
Last but not 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 and how do you think anyone can give you 100% foolproof advice? For all you know, the very advice which would have worked at one interview may be totally counter-productive at another.
Also, please 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 you don't say it in a pleasing manner with clarity, the chances of your effort going to waste are high.
All the best.
Regards,
TS