A project backed by the Bill and Melinda Gates Foundation has given chip-embedded smart cards to 500 prostitutes in Mysore, India, reports The Inquirer.

The card allows them to get discounts in shops and hotels and earns them loyalty points that can be redeemed for discounts on later purchases.

But the cards also have the medical record of the prostitute who has to compulsorily get his or her health check up at a clinic once in three months. The card becomes inactive if the holder fails to do this.