Mysore, Jan 10 (IANS): Infosys co-founder and chairman N.R. Narayana Murthy Friday said it was up to his son Rohan Murthy to decide his future.

"He (Rohan) is assisting me in the chairman's office and doing a brilliant job. He has joined me when I took over again as chairman and will continue till my term ends. What he wants to do is a decision left best to him. Even if he wants to continue after me, it is for the (company's) board to take the call," Murthy told reporters in this Karnataka city, about 150km from Bangalore.

The 30-year-old Rohan joined the IT bellwether as executive assistant in the chairman's office June 1 when Murthy senior returned as chairman to steer the company's fortunes.

"It will be speculative to say what he would like to do - whether go back to Harvard or may change his mind to stay back in India," Murthy quipped.

Rohan took a sabbatical from Harvard University and returned to Bangalore in June to work in the company his father co-founded in the 1980s with four others.