New Delhi: Janata Party chief Subramanian Swamy on Thursday termed as a "dangerous principle" the decision of Harvard University to remove courses taught by him, saying it "stifles" personal opinion.

In his reaction to the University calling as "reprehensible" his views in a controversial piece he wrote on Islamic terrorism, he said the University should have first sought his comments which was a normal procedure but that had not been done.

"The decision of the University to discontinue my classes is a dangerous principle that stifles personal opinion," Swamy, who taught at the American institution's annual summer school session, said.

The University, he said, should have a re-look at the decision.

Noting that he had been held accountable at Harvard for what he wrote in India, he said that the "dangerous thing" the University has done was to make their professors responsible for what they wrote elsewhere in the world.

"The article was written for a Mumbai newspaper and I teach economics in Harvard. I would assume that they would have sent their petition to me asking for my comments which are a normal procedure. But they have not done that," he said.

"If tomorrow anyone writes on India and writes rubbish about India, they come here, and then they can be punished here for what they write in America. That would be a dangerous principle. Harvard should look at it," he said.

IIT, Delhi "sacked me in 1973. Four years later, I became a member of the IIT Board of Governors, the very body which had sacked me," Swamy said.