I am going to be migrating XF payments to razorpay.com
I already have the PayU.in integration working since Dec 2017.
Will migrate to Razorpay in 3 weeks from now.
So, if anyone needs Payu.in or Razorpay.com XF Add on can message me.
Reasons for migrating to RazorPay:
International cards allowed so the Upgrade page will be less cluttered as Paypal linked plans (for Intl clients) will be done away with.