Colors' newest comedy ka tadka,  Comedy Nights Bachao (Optimystix) will see a major replacement even before going on air.

Well, in an overnight decision taken post the shoot of the first episode, beautiful damsel Sara Khan has been replaced.

Yes, you heard it right.

As we know, Sara who came to the limelight with Bidaai was too very eager to make her mark in comedy with this huge platform. But destiny had something else in store.

We now hear that Sara has been replaced by yet another popular face, Adaa Khan.

As per credible sources, "The reason for her replacement may well be that Sara did not live upto expectations in the first episode shoot. Hence the change was inevitable."

However, when we probed further, another of our well-informed source told us that Sara was stuck with some date issues as she is presently part of &TV's Bhagyalakshmi.

Oh well, seems like it was sheer bad luck for Sara, whatever the reason maybe.