The couple have been dating for five years and come from famous acting families, with their wedding attracting frenzied media coverage.
“Party time” ran the headline in the Mail Today, which offered breathless coverage of a pre-wedding function in Mumbai on Sunday evening.
“Dressed every inch like a bride-to-be, Kareena dazzled in an orange-yellow lehenga (skirt) and a shimmering golden choli (top),” it said.
“Beau Saif Ali Khan turned out more on the simpler side. He looked dapper in a white outfit.”
Friends have been tight-lipped about the private event, but the bride's uncle, actor Rishi Kapoor, confirmed to AFP that the wedding day would be followed by a reception in Delhi in the near future.
“It is a very joyous moment for our family,” he said.
Another celebration is reportedly planned at the Pataudi Palace, the ancestral home of Khan in northern Haryana state.
He became the new Nawab of the former princely state of Pataudi last year after the death of his famous cricketing father Mansur Ali Khan, known as “Tiger Pataudi”.
Khan's mother Sharmila Tagore is an award-winning actress and his sister Soha is also in the movie business.