No. Narayana Murthy should not be chosen as a presidential candidate. Even if he is clever, intelligent, good at social commitments etc.... either he will become a pawn at the hands of more clever and intelligent politicians or he may get too rigid. he is good at infosys only. A impartial, experienced, commanding and visionary politician should be made next president. Kalam shouldn't be continued... that will be the respect to the constitution in which second term is not allowed and also the dignity of his contribution in past five years will be maintained.