The actress was last seen in Housefull 2 opposite Akshay Kumar.
A source told DNA India: "Zarine did not have the kind of resources required to take lessons to become a pilot. She had to put that dream on hold because she could not afford to take up lessons that were burning a hole in her pocket.
"Soon after that, she made up her mind to enter the glamorous world of Bollywood, where she is now one of the new faces.
"Zarine is very happy with the way her career is moving ahead. She thinks it is time for her to now pursue her dream. She is going to very soon enrol for a pilot flying course and give her exams and realise her dream of flying high."
The actress recently said that she thinks size zero is a "Western concept".
In February, she was rumoured to have turned down an item number opposite Vivek Oberoi.
Watch a trailer for Housefull 2 below: