You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when was commercial bank first nationalised in india?" whose answer is 1969.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when were commercial banks first nationalised in india
Useful Output:

Doc 1: The first major wave of bank nationalization was seen in 1969 under the leadership of PM Indira Gandhi & the second wave of bank nationalization
Doc 2: At 8.30 pm on the night of July 19, 1969, then prime minister Indira Gandhi announced to the nation that 14 major commercial banks which
Doc 3: 50 years ago, the Indian financial sector underwent a tectonic shift, when Indira Gandhi government nationalized the 14 biggest commercial banks in 1969.
Doc 4: In 1969, Allahabad Bank, Canara Bank, United Bank of India, UCO Bank, Syndicate Bank, Indian Overseas Bank, Bank of Baroda, Punjab National Bank, Bank of India
Doc 5: In 1969, the Indian government nationalized 14 major commercial banks to promote socio-economic development and protect the agricultural sector.