The wedding rituals went on for over an hour at the well-decorated Green Mile Bungalow in Bandra in the presence of family members of the bride and groom.
"The wedding ceremony is a mix of both Punjabi and Tamil traditions. The food served is South Indian," a source close to Vidya told PTI.
The 34-year-old actress underwent three changes in costume during the wedding ceremony, one of them being a mustard saree with a pink blouse, matching the 38-year-old groom's yellow kurta and pink turban.
The wedding festivities for the couple began on December 11 with a private dinner which was followed by a mehendi ceremony on December 12.
Vidya, who never confirmed rumours about her relationship with Siddharth, stayed mum about her wedding as well and the celebrations are being kept as private as possible.
The 'Kahaani' actress, who was born in Kerala and grew up in Mumbai, made her Bollywood debut with the 2005 film 'Parineeta'.