"The rain God's pour their blessings on Vineet and Smily (my niece)," Mahesh Bhatt tweeted.
Mohit also shared a photograph of the newly-wed sister with the caption: "First look out!! "Smilies And Vineets marriage "!! Trailer coming soon."
While Bangera founded the dance company Dance Central, Smilie made her Bollywood debut with Mohit's "Kalyug" in 2005. She was also seen on TV show "Jodha Akbar".
Smilie was earlier linked to "Mahabharat" actor Shaheer Sheikh.