Is there a “liberal bias” in academia?

Is there a “liberal bias” in academia?

I won't call this merely a bias. In India, in the 1960s, with active support of politicians in power, the radical lefties occupied positions of authority & influence in the academia, particularly in Central institutions like JNU, DU, ICSSR, ICHR . These radicals saw to it that only fellow travelers are appointed teachers & fellows in these institutions. They constructed Indian history in their own image, without caring for facts & truth. Most of our academics & journalists are the product of these institutions, who openly show bias in their work. I was enlightened by this article in the London Review of Books that even in the USA such attempts were made in the 1960s.