Actor Vineet Kumar Singh, recently seen in 'Chhaava', said he was offered Kartik Aaryan's role in 'Luka Chuppi' but he lost it over a misunderstanding. Vineet said he thought the script, written by his friend, was shared with him for feedback. "It was my bad luck...I thought it was solely for feedback...and just like that the opportunity slipped," he added.