Mumbai, March 22 -- Azim Premji, India's second richest man, on Wednesday, 13 March, gave away 34% of his shares in Wipro Ltd to charitable causes, confirming his status as the most philanthropic Indian. The shares given away by Premji-a man known for his frugal ways-are valued at about $7.5 billion. With the latest contribution, the total value of funds committed by the billionaire to Azim Premji Foundation's philanthropic activities is '1.45 trillion ($21 billion). This includes a 67% economic ownership of Wipro, the foundation said on Wednesday, 13 March. Premji inherited his father's vegetable oil company and transformed it into a global software powerhouse. One of the world's richest men, Premji still flies economy class, avoids costly...