which film did she have her breakthrough in?
Shaitan
Kalki Koechlin
After facing some early struggle for film roles, Koechlin had four releases in 2011, garnering widespread recognition for her performances in them. The first was Bejoy Nambiar's "Shaitan", 
when was waiting (2015 film) released? 27 May 2016 who is the main character in the film? Shiv Natraj and Tara Kapoor Desphande who composed the music for it? Mikey McCleary is there any other film he has composed for? Yes, Margarita with a straw, Shaitan, etc. who plays the latter character mentioned above? Kalki Koechlin where was this actress born? Pondicherry, India
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Kalki Koechlin [SEP] Breakthrough and commercial success (2011–2014)
After facing some early struggle for film roles, Koechlin had four releases in 2011, garnering widespread recognition for her performances in them. The first was Bejoy Nambiar's "Shaitan", a crime-thriller with an ensemble cast that included Koechlin, Rajeev Khandelwal, Gulshan Devaiya, Shiv Panditt, Neil Bhoopalam, and Kirti Kulhari. She played the role of a disturbed teenager and called it an exhausting experience, saying that she felt drained while trying to, "get into a psyche of someone who does a lot of drugs and booze, has lost her mind a little bit and is very vulnerable". While the character was inconsistently described by film critics as "a nightmare" and "engaging", Koechlin was praised for her performance, with Raja Sen calling her "an increasingly striking actress".