The action-thriller is directed by A R Murugadoss, who is known for his commercial potboilers, starring leading actors.
The 29-year-old actress says she is overwhelmed that she got a chance to become the "Ghajini" helmer's first leading lady as he has never made a film with a female protagonist before.
"'Akira' pushed me in lot of ways that I have not been pushed before. It has been very challenging and it has been a fantastic experience. I'm really happy that it came to me at this point of time in my life and career when I was looking to do something like that," Sonakshi told PTI in an interview.
"With 'Holiday', I got a chance to work with Murugadoss sir, who saw the spark in me to cast in 'Akira'. He is the man who has worked with one of the top action stars of our country. He has never made a film with female protagonist before. He approached me for that and I felt really honoured."
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"It has a lot of shades and it was very challenging for me to portray such a character."
When asked if now she is only interested to play female-oriented characters, Sonakshi says it is only by chance that she is getting such roles.
Sonakshi's last release was "Tevar" which hit theatres in early 2015 and the actress says she may have been absent from the big screen but she was shooting back-to-back films.
Sonakshi says she will be seen doing action
sequences in "Force 2" as well but it is quite different from her upcoming film.
Sonakshi is excited about "Noor" and says in the film she plays a happy-go-lucky and relatable girl.
"My character in 'Noor' is wonderful. It is something that every girl and even boys might be able to relate to because the way she is. It's a story of a girl going through life and it's a very happy-go-lucky character."
"Akira" will hit theatres this Friday. It also stars Konkana Sen Sharma, Anurag Kashyap and Amit Sadh.