Devgan himself will be playing the lead role and this will be the star couple's sixth movie together, The Times of India daily reported. Kajol, who uses one name, took a five-year break after marrying Devgan in 2001 and returned to acting this year with a hit movie "Fanaa".
She recently joined a Latin American and western dance class, putting the cha-cha, salsa and waltz in her repertoire.
Devgan has been planning to direct a film for long time.
His first home production "Raju Chacha", or "Raju Uncle," was directed by his cousin Anil Devgan. There were reports that Ajay Devan actually wielded the megaphone, ghost directing the movie.