Veere Di wedding was multiplex movie, and imdb rating reflects it's true rating by users. still did 80 crore nett
business and became hit.
Gangs of wasseypur has rating of 8.2 but it is below average.
So fan's should not make imdb rating as an excuse for movie's business.
Movie genre is most important thing related to box office performance. If movie looks like fun ...there would be initial rush, even if it is bad. If movie looks like serious, there are less chances that people will rush to watch it, even if it is very good story.
Race 3 looked much more fun movie than Tubelight ... now even though Tubelight has higher rating ... it has lower opening than Race 3.