The 69-year-old actor recently attended a party thrown by the French embassy in honour of Isabelle Adjani, who is playing a prominent role with Preity in her debut production venture "Ishkq In Paris".
"Preity Zinta produces and acts in a film which also has in its cast the beautiful Isabelle Adjani from France. Isabelle is in town for its shoot and Preity invites us for a party at the Sofitel Hotel, hosted by the French Ambassador, to meet the lovely lady.
"It's a quiet dignified evening, and because I am fond of Preity, I go along for precisely 10 minutes, to wish her and her guest," he posted on his blog.
Bachchan, who has shared screen space with Preity in films like "Veer-Zara" and "Kabhi Alvida Na Kehna", said he is bowled over by her guts, the way she has managed her career so far without any help and survived in the showbiz business.
"I have always admired Preity for her drive and guts in a world that can be most cruel to a single girl. But just look at the way she has managed her career, all alone, without any traditional assistance from the Industry.
"She is frank and painfully honest and outspoken to the 'o', and that is an admirable quality, for a girl that had to face some rather tragic and unfortunate events very early in her life," he added.
The 37-year-old actress is the founder of the production company PZNZ Media and the co-owner of IPL team Kings XI Punjab. Bachchan praised her for playing the role of a businesswoman perfectly.
"She put her hand into business, knew nothing about it, but was determined to educate herself. So she went across to USA for a short course in business management at a prestigious college and came back wiser, educated and a lot more confident and not for a moment keeping too far away from her profession of choice