The trial of a British-Indian businessman, accused of having his wife murdered during their honeymoon trip to South Africa, began .

British businessman Shrien Dewani has formally pleaded not guilty to murdering his wife on their honeymoon in South Africa in 2010.

Mr Dewani, from Bristol, is accused of hiring a hitman to kill his wife Anni reported BBC.

The couple were held at gunpoint while being driven in a taxi through Gugulethu township near Cape Town.

Mr Dewani, 34, told Western Cape Crown Court in a written statement that his “whole world came crashing down” when his wife was found killed.

The businessman also revealed to the court that he is bisexual.

‘Angry disagreement’

Mr Dewani faces five charges including murder and lying about the circumstances of Swedish national Anni’s death.

Prosecutors argue that Mr Dewani conspired with Cape Town residents Zola Tongo, Mziwamadoda Qwabe and Xolile Mngeni to kill his wife.

The court heard forensic evidence that the fatal shot was delivered “at close range”, with a suggestion that Mrs Dewani might have been grabbing on to “someone or something” at the time she died.

A video taken shortly after her bloodied body was found was also shown to the court.

Through defence lawyer Francois Van Zyl, Mr Dewani said he had “had sexual interaction with both males and females”.

“I consider myself to be bisexual,” the court was told.

“My sexual interactions with males were mostly physical experiences or email chats with people I met online or in clubs, including prostitutes,” Mr Dewani’s witness statement said.

Mr Dewani said he had abnormally low levels of hormones, rendering his chances of having children slim. He said he discussed this with Anni, whom he began dating in summer 2009.

Shrien Dewani, 34, charged with conspiring to murder wife Anni in Cape Town in November 2010, reached the Western Cape High Court for the trial, Independent Online reported.

Dewani and Anni were held at gunpoint while being driven in a taxi through Gugulethu township near Cape Town.

Dewani was thrown out of the car later that night and Anni’s body was found the next day with a gun shot wound on her neck.

Dewani has pleaded not guilty to the murder charge.

Three men have been convicted: Xolile Mngeni, who was found guilty of shooting Anni, taxi driver Zola Tongo, who admitted to his part in the murder, and Mziwamadoda Qwabe, another accused who has pleaded guilty.

Dewani has yet not faced the court owing to a long extradition process complicated by his mental health.