May be she had second thoughts about acting opposite someone with a criminal record. It would be a lot of bad publicity for her internationally and it would be an embarrassment for her in those talk shows when she'd be asked about it.
She may have used Nick Jonas reason to bow out of the project. Otherwise her other film with Farhan Akhtar just went on floors the previous week. If she could do that film, she can do this too. Her schedule was already worked out.
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