Ayushmann Khurrana, who is a non-smoker in real life, had a tough time learning how to puff for his upcoming film, 'Dam Laga Ke Haisha'.

The actor's character requires him to light up often. Ayushmann claims that this is the first time he has ever smoked not only for the shoot, but in real life too. The actor apparently was keen to avoid the smoking scenes, but the makers insisted on it.