"Hopefully, by the end of this year," Kareena said at the India Today Conclave 2012 here, following a question about her D-day.
"I am working on 'Heroine' and I need to finish the film first. But we're not going to announce the date yet.
I don't understand why the entire nation is in a hurry to make me the Begum of Pataudi. There's no rush. Obviously people have to be patient," she added.
The 31-year-old has been romantically with Saif, 10 years her senior, since 2007.
Saif was anointed the 10th Nawab of Pataudi in 2011, after his father, Mansoor Ali Khan Pataudi's death.