What is of note of Indian Economy?

According to economist Mr. Debroy:

….at Ficci and the newly-appointed Chief Economic Advisor spoke there. This is what he reportedly said and it is best to put this within quotes. “In 1975, India first achieved 9% gross domestic product (GDP) growth due to the nationalisation of banks and opening of a large number of branches in rural areas, which led to the highest rate of savings and investment that made up 13% of the GDP.”