UPI saw the highest transaction volume in July 2020, accounting for 40% of total transactions, while RTGS saw the highest value at 67% of total value transferred. On average, transaction values were highest for RTGS at Rs. 57,93,071, followed by CTS at Rs. 81,504. The document provides payment system statistics for India in July 2020, including transaction count, value, and average transaction size (ATS) for various systems like UPI, NEFT, RTGS, IMPS and others.