He is the son of the Nawab of Pataudi [a term that refers to any of a lineage of rulers of the princely state of Pataudi in India], Mansoor Ali Khan Pataudi, and the actress Sharmila Tagore. His sister is actress Soha Ali Khan.
Khan made his debut in 1992 with Parampara. He had his major success with the 1994 films Main Khiladi Tu Anari and Yeh Dillagi. After starring in several box office failures throughout the 1990s, he gained acclaim and rose into prominence with his performance in Dil Chahta Hai (2001), and went on to turn his career professionally after that. He was praised for his performance in Nikhil Advani's hit Kal Ho Naa Ho (2003), which won him the Filmfare Best Supporting Actor Award, and won the coveted National Film Award for Best Actor for his performance in another hit Hum Tum (2004). Source: Wikipedia
Indian actor Saif Ali Khan with sexy chest