Due to the recent amalgamation of the Corporation Bank with the Union Bank of India, all the existing as well as new customers are being directed to the anchor bank, i.e. the Union Bank of India.
If you have a bank account in Corporation Bank (now, Union Bank of India) and wish to use UPI to transfer funds, you can use the bank’s own UPI mobile app – BHIM CORP UPI. As the name says, Corporation Bank has collaborated with BHIM, which is UPI-based mobile app regulated by NPCI.
UPI (Unified Payments Interface) is an instant payment platform using which you can transfer funds from one bank to another without sharing bank details or adding beneficiaries. This is launched by RBI and thus carries a good level of safety.