Bollywood's latest sensation Alia Bhatt (Director Mahesh Bhatt's Daughter) suffered an oops moment during the trailer launch of her upcoming movie 'Humpty Sharma Ki Dulhania'. She accidentally flashed her inner wear when her co-star Varun Dhavan lifted her in his arms and her Patiala suit hardly saves her from embarrassment. Hope, Alia doesn't repeat this mistake again!