Does anyone know this?

You get a sign up bonus at the start..you can use that to post your task

Hi Eshaan, You can use the $2 amount which you got as a bonus after joining to complete your task. In addition to this if you want to fund your account to create more tasks or campaigns, just click on the "Deposit" link and then deposit the amount from your paypal to microworker's account and start your campaign. Minimum deposit is $10 at micro worker, but you can easily use $2 which you received as bonus. So just click on campaign and click on "start a new campaign". Hope this helps.

I wish I would have told you if I knew. Sorry friend.