Indusind is little slow in this, Wait for 3 more days and if you don't get refund then tag me.Paid hdfc cc bill upi via indusind account twice.
Only hdfc cc payment failed for me, may its dcb thats why.
Rest all bank cc were credited within 2-3 days.
btw a tip for everyone. Always do a 100rs testing transaction to check if the website is working properly.