Hey @raghu-nath, the easiest way to explain it is too have a look into our code on github. If you have any doubt and would like to get your hands on some pods, please do a direct transfer from your Steem Wallet to the @sportspodium Steem wallet and just specify your email address in the memo field. This way you don't need to submit your password to the pre-sale website. We honestly only want to give the Steemit community a chance to purchase Pods early in the race before we run our main token sale