UPI is supported 2 lakhs payment per day on special categories merchants like Loan repayment, credit card bill pay, mutual funds, insurance etc.
Lazypay is loan app, you can pay upto 2 lakh using UPI payment.
You can also manually pay lazypay due bill through lazypay app, first set limit to 1 lakh and pay using UPI and then pay rest of the amount through any other bank UPI.