film tells the story of Pakhi Roy Chowdhury, a young Bengali woman who falls in love with Varun Shrivastava, a conman posing as an archaeologist. Rajeev Masand of CNN-IBN wrote that Singh "brings a quiet sensitivity to Varun, and occasionally a smoldering intensity. Offering a finely internalized performance, he leaves a lasting impression." Lootera underperformed commercially. Singh next starred opposite Deepika Padukone in Sanjay Leela Bhansali's adaptation of William Shakespeare's Romeo and Juliet, titled Goliyon Ki Raasleela Ram-Leela, in which he played Ram, a Gujarati boy based on the character of Romeo. Bhansali was impressed by Singh's performance in Band Baaja Baaraat and decided to cast him for the film. Goliyon Ki Raasleela Ram-Leela generated positive reviews from critics, as did Singh's performance. Writing for India Today, Rohit Khilnani wrote that the film proved that he would be a star. The film emerged as Singh's biggest commercial success, with worldwide revenues of . Singh received a nomination for the Filmfare Award for Best Actor. In 2014, Singh starred as a Bengali criminal in Ali Abbas Zafar's Gunday, alongside Arjun Kapoor, Priyanka Chopra and Irrfan Khan. David Chute of Variety praised Singh's screen presence and wrote that he "tucks the movie's center of interest under his arm and takes it with him — even though he has the could-be-thankless "good brother" role". Also, Singh's chemistry with Kapoor was considered by critic Rohit Khilnani to the prime asset of the film. Gunday proved to be Singh's biggest box office opener, and eventually emerged a box-office success with a revenue of worldwide. After a cameo appearance in Finding Fanny, Singh starred as a gangster in Shaad Ali's poorly received crime drama Kill Dil opposite Parineeti Chopra and Ali Zafar. Established actor (2015–2019) Zoya Akhtar's ensemble comedy-drama Dil Dhadakne Do (2015), produced by and cameo-starring her brother Farhan Akhtar, featured Singh alongside Anil Kapoor, Shefali Shah and Priyanka Chopra as the younger sibling of a dysfunctional Punjabi business family who aspires to become a pilot. Writing for Mumbai Mirror, Kunal Guha found Singh to be the "surprise element" of the film; he praised his "immaculate comic timing" and took note of his subtlety. Commercially, the film underperformed. He next reunited with Bhansali in the period romance Bajirao Mastani (2015), opposite Padukone and Chopra. He portrayed Bajirao I, for which he shaved his head and to prepare, he locked himself in a hotel room for