Solution:In Public Sector Banks (PSBs), majority of stake (i.e. at least 51%) is held by the Government. State Bank of India, Indian Overseas Bank, Punjab National Bank etc. are public sector banks. At present, there are 12 public sector banks (including State Bank of India) in the country.Public sector banks in India have a history dating back to the early 20th century when the need for extending banking facilities for social inclusion, economic, and agricultural support became important. The high moment in PSBs' evolution history occurred when 14 major commercial banks were nationalized by then Prime Minister Indira Gandhi in 1969. This move was purposed at increasing the reach of banking services in the rural and semi-urban areas and cater to the credit requirements of various population segments.
Phase 2 of nationalization occurred in 1980, in which six more banks were nationalized. The number of bank branches rose dramatically across the countryside, and this era witnessed enhanced banking services in the neglected sectors of the country. In the 1990s after liberalization, banking in India underwent a sea of change, but public sector banks still remained the nucleus of the financial firmament of India.