Should have done 3-4 years ago. Now there are at least 3 apps fighting for leadership in payments: PayTM, Google Pay and PhonePe. Will be hard for Whatsapp to break into.
https://www.bloombergquint.com/business/npci-imposes-cap-on-...
Government may also remove wallets (which aren't part of UPI) completely in future through regulation.
If you’ve already reached your 30% cap, what incentive do you have to improve your service?
By having to compete with other services who are trying to get your share?
https://www.theverge.com/2020/11/6/21552325/whatsapp-payment...