"When the Board of Directors at Infosys requested me to come back last year they gave me two mandates, one - to assist them in finding an excellent successor to (CEO S D) Shibulal.
"The second mandate they gave me was to create a strong foundation for future growth of the company. I believe by and large I have fulfilled both of these obligations," he said.
Announcing the big shakeup at the top echelon, Murthy, who will step down as Executive Chairman on June 14, said: "first having Vishal on board is truly a wonderful culmination to the effort that the nomination committee started two months ago, that completes my first responsibility."
"On the second responsibility - as I said last year at the AGM on June 15, 2013 - we need 36 months to yield results; we have started several initiatives on sales effectiveness, on improving software delivery effectiveness and on cost optimisation. We have done several things....And therefore I believe that I have brought this second mandate to a shape...," he added.
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Murthy has been designated as Chairman Emeritus with effect from October 11, 2014.
Stating that the title of Chairman Emeritus is just a recognition, Murthy said: "...Other than the title I will have no responsibility, no authority and no obligation at all to Infosys."
About his plans for the future, Murthy said: "At this point of time my first priority is to spend time with my wonderful grandchildren -- one is three and other is one and a half, both are grand daughters.
Asked whether the company should have thought about non- founder CEO much earlier and has Infosys leadership institute has failed because of external CEO, he said: "first of all I think, I believe every choice (for CEO) that we made was a best choice under the circumstances; ....I have no hesitation in saying that.