Saif, 42, son of late Nawab of Pataudi and former Indian cricket captain Mansoor Ali Khan Pataudi and actress Sharmila Tagore, sealed his relationship with Kareena, 32, at his residence in suburban Bandra through a registered marriage.
"It was a registered marriage with three witnesses -- Kareena's father Randhir Kapoor, her mother Babita and Saif's mother Sharmila," marriage Registrar Surekha Ramesh told PTI.
The couple who started dating in 2007, married in the presence of close friends and family this afternoon.
The couple had officially declared their intention to tie the knot in the beginning of 2012 after the release of their film 'Agent Vinod' in March.
Randhir and his elder daughter Karisma later waved to the waiting fans and media from the balcony of the house. (MORE)