Naveen,

it entirely depends on how you believe the company you are interviewing would perceive that. Some organizations, this we know from our experience as recruiters, frown upon candidates who evaluate multiple offers from different organizations. If you have friends inside the company find out how they feel.

You are of course free to evaluate multiple offers and take one that makes most sense for you moneywise or role wise. To answer this question therefore you can tell them that " iam interviewing /have interviewed with others, and am confident of offers. But iam very keen on this current role with you, that is why i would like to take this through and understand what offer you can make if iam selected"

Usually if you are suitable for a role the company would also be keen to get you onboarded, so telling them you have other offers could get them to give you a quicker turn around. They could ask you to share the offer letters, i would discourage you from doing so, if they insist give them the details but never send the offer document itself across.

Depending on the nature of the company, your own evaluation of the role, and how keen you are on it and they are on your candidacy, you need to handle this quesion.