As per data available with NSE, the shares were previously held by Raghavan's son Anand Nadathur.
While the former joint managing director of Infosys acquired 5,78,279 shares at an average price of Rs 1,220.15, Jamuna bought 1,96,721 shares at an average price of Rs 1,220.25.
The transaction was completed through a block deal on NSE.
Raghavan is one of the founding members of Infosys and retired from the company in 2000. He then along with a few associates started Nadathur Holdings & Investments Ltd (NHIL).
Raghavan also seeded the NSR Centre for Entrepreneurship Learning at the Indian Institute of Management, Bangalore which seeks to mentor early stage companies.
Shares of Infosys today closed at Rs 1,207.60 on NSE, down 0.88 from the previous close.