"Refer Karo, Earn Karo" is a simple way to make money by inviting friends to join apps, websites, or services using a referral code or link. Many platforms, such as Paytm, Google Pay, Dream11, and Meesho, offer referral programs where users earn cash rewards, discounts, or bonus points for every successful sign-up. The referred friend also benefits, often receiving a welcome bonus. To maximize earnings, users can share their referral links on WhatsApp, Facebook, or Telegram. Some apps have withdrawal limits or conditions, so checking the terms and conditions is important. Start referring and enjoy easy rewards!