Imagine, the mindset of the Indian audience - they are ready to spend time and money on even Dada Kondke style movies. For the young generation, Dada Kondke is famous for his double entendre dialogues in movies. His most infamous movie was "Andheri Raat Mein Diya Tere Haath Mein".
The producers of Grand Masti say it will touch earnings of Rs 100 crore. And this is sure to open the floodgates for similar genre, which can be a double-edged weapon; on the one hand it promotes vulgarity and on the other, it gives vent to the pent up demand for colloquial porn.
Anyways, Good luck to the producers!