The award winning Indian actress started dating Ness, son of Bombay Dyeing owners Nusli and Maureen Wadia, in February 2005, reports the Daily Times.
The couple's relationship went through a bad patch earlier this year after singer Suchitra Krishnamurthy blamed Preity for her divorce with Shekhar Kapur.
Krishnamurthy alleged that the actress was having an affair with her director husband.
The news of the wedding has come after several reports of cold vibes between Zinta and Wadia's mother Maureen had been circulated by the media.