Rani Mukerji in Hichki

American motivational speaker and educator Brad Cohen says director Siddharth P. Malhotra and actress Rani Mukerji have done a great job in "Hichki". Cohen's book "Front of The Class" -- detailing how Tourette Syndrome made him the teacher, has inspired the project by Yash Raj Films (YRF). The production banner organised a screening for Cohen in Atlanta on Friday.