UPI based payment system is introduced by WhatsApp in India. WhatsApp users can send money to any WhatsApp number through this feature.
Now WhatsApp is co related with ICICI bank for introducing new payment feature. User cannot join directly in payment feature. When a Payment feature enabled user send a greeting message to another user, can join WhatsApp payment service immediately. Their is no direct link is available now. It will be available soon.
Inviting will give permission to enable this feature. When this process is completed re launch the WhatsApp and go to Settings – Payment option to enable feature. After join this, their is an option to add bank details. Now users able to transfer fund through WhatsApp any time.