India, Dec. 26 -- Rafi sahab is my musical father and guru. My papa introduced me to his music. Main aaj jo bhi hoon, Rafi sahab ki wajah se hoon. I can't thank God and Rafi sahab enough for being by my side," said an emotional Sonu Nigam, as he took the stage for Sau Saal Pehle. The three-hour tribute concert, held in Mumbai on December 24, marked the 100th birth anniversary of late music legend Mohammed Rafi....