Free speech is important. But there is a reason some people don't think so and are okay with curbs on it. Think about it. Who needs freedom of expression? Whose work will stop if free speech was not a guarantee? The answer is arts students, artists, writers, scholars, journalists etc.
These are people who, throughout their academic careers have thrived on a free exchange of ideas and lively discourse. These are people whose work requires questioning and challenging the status quo. This happens among science students too, but in the Indian education system, for the most part, science education is little more than rote learning — memorising principles and regurgitating them in examinations.
The Humanities on the other hand, cannot be taught without students in a classroom raising hands and differing with the teacher. It's kind of part of the deal. The Indian middle class not only tells its children to not question authority, it also tells them to not go into the Humanities. The overlap is not coincidental. It's part of a larger picture which has to do with open support for demagogues, hatred of intellectuals, and contempt for social workers whose work necessitates showing privileged society a mirror.