Alia Bhatt and Varun Dhawan's 'Humpty Sharma Ki Dulhania' trailer goes viral, gets 3 mn views (see pics)

New Delhi, After debuting in Karan Johar's ‘Student Of The Year', actors Alia Bhatt and Varun Dhawan are back again together in Karan's next film ‘Humpty Sharma Ki Dulhania'. And what's more, the duo have already