Ace kollywood director Hari is all set to launch his next flick after the great repsonse he has received for Singam. Hari's next project will be titled as Vengai and will have Dhanush and Tamannah in the lead. Kollywood actors Rajkiran and Kanja Karuppu will also don pivotal roles in the flick. The music of the flick will be directed by Devi Sri Prasad