Consider the following statements, Which of the statements is correct?

1. Indian private sector banks made the largest single-session purchase of government bonds in six years, including a big investment on behalf of a corporation.
2. These banks bought bonds worth a net of 83.43 billion rupees ($1 billion), the biggest such purchase since Nov 15, 2016, as per data from Clearing Corp of India.
3. This pushed overall buying to above 500 billion rupees for November, after net sales of 101 billion rupees in October.