Filmmaker Sujoy Ghosh's mother is happy with her son's creativity after watching Vidya Balan starrer thriller "Kahaani".

"My mother finally saw 'Kahaani'. Could see the relief in her face that her son is not wasting his time in Mumbai. that finally kuch kiya look (Sic)," Ghosh tweeted.

Produced and directed by Ghosh, the movie revovlved around a pregnant Vidya Bagchi, played by Vidya, who flies down to Kolkata in search of her missing husband.