The correct answer is (a) S.B.I.
The State Bank of India (SBI) is the largest bank in India and the largest public sector bank in the world. It was founded in 1865 and is headquartered in Mumbai. SBI has over 24,000 branches and over 50,000 ATMs in India. It also has a presence in 36 countries across the world.
SBI received the ‘Core Banking System Initiative Award, 2014’ for its implementation of the Core Banking Solution (CBS) project. The CBS project was a major undertaking that involved the integration of all of SBI’s branches and ATMs into a single, centralized system. The project was completed in 2013 and has resulted in significant improvements in efficiency and customer service.
The other options are incorrect because they are not the largest banks in India. PNB is the second largest public sector bank in India, BMB is the third largest private sector bank in India, and BOB is the fifth largest public sector bank in India.