A Hindu nationalist group has gone to court in India over the naming of a lioness in a zoo after the Hindu deity Sita, calling it blasphemous and an assault on the community's religious beliefs.

The Vishva Hindu Parishad (VHP), or World Hindu Council, wants the court to order the name to be changed.

It has also objected to a plan to keep the five-year-old lioness in the same wildlife park as a lion called Akbar - the name of a 16th century Moghul ruler - as part of an exchange programme among Indian zoos.

The VHP, which is linked to Prime Minister Narendra Modi's Hindu nationalist party, says the beasts were given their names by the government of West Bengal state, which is run by an opposition regional party.

The complaint to the court, written by VHP's West Bengal secretary Lakshman Bansal, said the group had observed "with deep anguish" the naming of the cat as Sita. She is the consort of Lord Ram and herself is a sacred deity to all Hindus across the world, it said.

"Such act amounts to blasphemy and is a direct assault on the religious beliefs of all Hindus," it said.

VHP spokesperson Vinod Bansal threatened protests if officials refused to change the name and the location of the lions.

Akbar was a Mughal emperor who consolidated Muslim rule over much of the Indian subcontinent, a period which Hindu nationalist groups consider as the darkest phase for Hindus.

Religious issues have long divided India, - which has a Hindu majority of about 80% of its 1.42 billion people but also the world's third largest Muslim population. Sectarian disputes have flared and led to sporadic violence, including over religious sites.