Delhi, November 6: Karnataka continues to retain its position as the top Unified Payments Interface or UPI contributor in October 2019, accounting for 27.72 per cent of the total transactions in the country. It was followed by Maharashtra with 14.20 per cent, and Telangana and Andhra Pradesh with 10.76 per cent collectively. On the other hand, the northern state of Haryana entered the club with 7.91 per cent of the total transactions.