You may not look that much satisfied with the reasoning though, but you have to think and believe that Guru was a hit and among few of her screen presence in Guru, Vidya had a 'drenched-in-rain' scene which was obviously the reason behind Guru's success. Unfortunately, people spent more time talking about Abhishek-Aishwarya and others in the flick. The film was not released in monsoon but it had a monsoon scene to boost Vidya kismet.
I know you must be thinking about the other side of the coin. Thus I have the list of her other films like Salaam-E-Ishq, Bhalo Theko (Bengali) and Halla Bol which doomed at the box office for a simple and single reason of not releasing at the monsoon.
Guess what! Vidya's Kismat Konnection is releasing this monsoon and thus leaving no room to think of its failure at the box office. Moreover, she has her pin up boy Shahid Kapoor to share the showers. What else, Vidya has nothing but to wish re-releasing Halla Bol and Salaam-E-Ishq this monsoon to make them hits.
Jokes apart, guess what Vidya will be singing all these days… "Rain rain, come again, make my releases worth and bless me with gains".