When Darcy and Lalilta are sitting in the Mexican restaurant while Lalita's family is in California, she has one sip of her margarita and places in on the table. When the camera switches to face Darcy, the drink is still visible as if in her hand.
Lalita criticises both Darcy and Mr. Kohli for having a list of attributes that they want in a potential wife, then she does an entire musical dance number about her own list of attributes for a potential husband.
When Lalita's mother asks Balraj to find Lalita 'a nice Indian husband' right in front of Darcy, Lalita and Darcy exchange lengthy dismayed looks as they realise that Lalita's parents don't view Darcy as a potential marriage match. Yet in the next scene, her parents smile and laugh and openly signal permission when Darcy looks to them for permission to embrace Lalita. Their sudden total change of heart is never explained.