Correct option is B
The correct answer is (b) Oriental Bank of Commerce and United Bank of India.
On April 1, 2020, Oriental Bank of Commerce and United Bank of India were amalgamated into Punjab National Bank (PNB), creating the second-largest nationalized bank in India in terms of business and branch network.
Additional Information:
Canara Bank and Central Bank of India: These banks have not been merged with PNB. Canara Bank merged with Syndicate Bank, effective April 1, 2020.
Union Bank of India and Bank of Baroda: Union Bank of India merged with Andhra Bank and Corporation Bank, while Bank of Baroda merged with Dena Bank and Vijaya Bank. Neither has been merged with PNB.
Axis Bank and Kotak Mahindra Bank: These are private sector banks and have not been involved in any mergers with PNB.