Randeep slaps Alia Bhatt.

Alia Bhatt was slapped for the first time in her life by Randeep Hooda, while shooting for Imtiaz Ali's Highway.

Alia, the youngest in her family, has never been slapped even by her parents, Mahesh Bhatt and Soni Razdan. But of course she's a true-blood professional and was game to take the slap to make the scene look authentic.