At least one person was killed in Bangladesh in clashes between security forces and Hindus protesting against the arrest of a religious leader, police said, even as neighbouring India urged that the safety of Hindus and minorities be ensured.

The arrest of a Hindu monk in Bangladesh has triggered a fresh war of words with neighbour India over the condition of minorities in the country. Chinmoy Krishna Das, a spokesperson of a Bangladesh-based Hindu organisation, was arrested on sedition charges this week, spurring clashes that led to one death.

Union minister Giriraj Singh on Wednesday said the attack on Hindus in Bangladesh reflects that the interim government of that country is in the "clutches of fundamentalists" and sought the intervention of the United Nations in the matter.

Bangladesh stepped up security in the port city of Chittagong on Wednesday as police arrested six people in connection with the murder of a lawyer, who was killed during clashes following the arrest of a leader of the country's Hindu minority.

Lawyers in southeastern Bangladesh are boycotting courts to protest the killing of a colleague in a daylong violence over the arrest of a prominent minority Hindu leader

Leader of Opposition Suvendu Adhikari led a protest march to the Bangladesh Deputy High Commission in the city.

Bangladeshi supporters of an arrested Hindu leader clashed with security forces on Tuesday after the outspoken monk was denied bail on sedition charges, with one person killed, police said.

ISKCON monk Chinmoy was reportedly held in Bangladesh for alleged sedition, during his rallies in Chattaogram and Rangpur. He was arrested from the Dhaka International Airport by the Detective Branch of Dhaka Police.