NEW DELHI - A throne with a built-in commode for a French monarch takes pride of place at a New Delhi museum trying to break taboos surrounding toilets in a country where such convenience remains a sensitive issue.

The replica of the wooden throne used by King Louis XIV is among a treasure trove at the Sulabh International Museum of Toilets, tucked away in a bustling suburb of the Indian capital.

The French king is believed to have struggled with constipation and held audiences while defecating to save time, say the museum curators.

Scores of curious visitors stop by daily to see the centuries-old commodes, chamber pots and bidets as well as a 21st century machine that turns human waste into ash in seconds. More were expected for Sunday's UN World Toilet Day which has events around the globe.

"It is quite an unusual museum and I believe it's the only one of its kind in the world," said Bindeshwar Pathak, founder of the museum and the nonprofit Sulabh International.

"The idea was to start a healthy conversation about sanitation and toilets. We wanted to tell people toilet is not a dirty word," he said, playing with a small black ball made from dried human waste mixed with glue.

Toilets are a touchy issue in India where about 600 million people - nearly half of the population - defecate in the open, according to UNICEF.

Some 70 percent of Indian households do not have a toilet - while 90 percent have access to mobile phones.

More than half the world population does not have a home toilet.

Experts say open defecation in India stems from poverty and a belief that toilets inside the home are unclean. So people prefer to squat in the open.

Three years ago, Prime Minister Narendra Modi launched a massive cleanliness drive, pledging to build toilets for all by 2019.

So far the government has helped install more than 50 million toilets across the country of 1.3 billion people.

The Delhi museum's collection also draws the curious to see a cushioned loo used in European gambling clubs which helped members keep an eye on table stakes without having to take a break.

"It is very interesting to see and read about the quirky designs and the history behind them," said Vinita Lodwal, a 25-year-old studying to be a nurse, as she posed for a selfie with her friend in front of an ornately designed commode.

Agence France - presse