Chandramohan was released on bail on Monday after five days’ imprisonment and has gone into hiding. He could not be reached for comment.

Mr. Jain, whose police complaint set off the art school crisis, said he was proud of his campaign. He described the student’s artwork as an attack on Indian culture. “I cannot tolerate any insult to our culture and to our god and goddesses,” he said in a telephone interview. He said he was also offended by a student painting in which a figure of Jesus was placed before a toilet.

It is not the first time artistic expression in this country has been squelched by state institutions. In Mumbai, India’s commercial capital, a court charged M. F. Husain, perhaps India’s most famous contemporary painter, with obscenity because of a painting he made of a goddess in the nude. Mr. Husain now lives in self-imposed exile in Dubai. Because he had not appeared for court hearings, the court recently issued a notice directing that his property in Mumbai be seized. (The Supreme Court has issued a stay.)

India is rarely lacking for paradox, and one of the most striking is that the puritanism of today’s Hindu radicals coexists with a long tradition of graphic sexual iconography. Hindu temple carvings often feature elaborate scenes of copulation. Among the best-known examples, at Khajuraho, in central India, was invoked this week in newspaper commentaries skewering what was referred to as the moral police brigade.

Writing in the Tuesday issue of The Indian Express, a national daily, Peter Ronald de Souza, a senior fellow at the Center for the Study of Developing Societies, a research organization here, said of the Hindu activists who forced the student’s arrest:

“It tells us not just they do not fear the wrath of the law, and that they believe censorship is acceptable in the service of a cause, but also they are certain that their actions would meet with social approval. So did the Taliban.”

His commentary was headlined, “Will They Blow Up Khajuraho?”

In a protest on Monday night here in New Delhi, prominent artists, curators and art teachers condemned the attack on the student’s work as a violation of basic freedom. “India is descending into a dark prison of the imagination,” warned Ram Rahman, a Delhi-based artist who took part.