It's a known fact that Dev and Koel, who have worked together in multiple films are good friends even in real life. Therefore, when the 'Chhaya O Chhobi' actress was roped in to play the female lead in Dev's home production 'Cockpit' the actress didn't demand any amount from her friend cum costar.
As per the news Dev too couldn't decide the figure he should write on her cheque, therefore, gave a blank cheque to the pretty actress. This shows, the actor turned producer completely trusts Koel. We hope, the friendship remains strong forever and we get more films of this pair.