Bollywood’s topmost actress Vidya Balan, who has been in a steady relation with UTV CEO Siddharth Roy Kapur, is all set to say ‘I do’ this year. And if the reports of the power couple’s wedding are to be relied on, the marriage might happen by the end of this year. After publicly announcing her relationship with Siddharth last year, Vidya was often seen with her beau in private parties and making trips for holidays abroad. Last heard, the couple bought a posh love nest in a Mumbai suburb close to the sea. However, the lovey-dovey duo is yet to make a public announcement of their rumoured wedding. Yet, sources close to Vidya and Sid have revealed that the couple is focusing on final preparations of the marriage which might see the day of light in December 2012.