Says a core member of the film's crew, "When Tigmanshu made Sahib Bibi Aur Gangster, he consciously avoided making Mahie a replica of Meena Kumari in the original film Sahib Biwi Aur Ghulam. But in the sequel he has modeled Mahie entirely on Meena Kumari. And that includes the character's alcoholism."
There was only one major difference between Guru Dutt's and Dhulia's 'Biwi'. While Meena Kumari apparently enjoyed the drinks when she did Sahib Biwi Aur Ghulam, Mahie recently has given up alcohol completely.
Apparently Mahie developed a drinking problem while shooting for the film.
Ironically Mahie had stopped drinking entirely before she had to return to strong beverage. "I had kicked the habit completely. Now because of my character's drinking habit, I've started drinking again."