Friends..i had sent hi or introductory mail to many people here...but very few of them responded...ladies and gentlemen is my profile pic that bad??n how?? should I need to change that??...in order to get good primary response..atleast.

Welcome. If they look at your profile, that means they like your pic. If they dont even look at your profile, then they dont like your pic or location or age, or you are not their type etc.
Try a pic looking directly at the camera smiling and more than one pic works better as you are competing with scammers who have only one fake pic. (You could be mistaken for a scammer)
Make your blurb as attractive as possible...you have a lot of competition here.

No response is a response, especially if you are writing to people who live outside your nation.

Oh and never send 'hi', it rarely gets a response.

Its just luck, with millions of members it takes time and patience to achieve your goals...

If you are wondering why women don't respond to your messages.
READ THE PROFILE CAREFULLY BEFORE WRITING!!!

Start by reading her profile, BEFORE you look at the pictures. As you read think of questions you would ask the person about what they have written. First, try to include something in your first email to prove you read their profile.

Do NOT make your emails generic, always reference specifics about the lady in question so she knows you're not a spammer or serial e-mailer.
Don'��t use the same message over and over again. The truth is, girls are smarter than you�'re giving us credit for. And we can spot a re-usable message a mile away.

If you get your message right, then your chances of receiving a response will be much greater.

If I Only Had a Brain - The Wizard of Oz