I've copied some of the text from the site just in case the BBC archives it and the link goes dead. I might tidy up my copy-pastes at some point, but for now:
"The basis of shastar vidya, the "science of weapons" is a five-step movement: advance on the opponent, hit his flank, deflect incoming blows, take a commanding position and strike.
It was developed by Sikhs in the 17th Century as the young religion came under attack from hostile Muslim and Hindu neighbours, and has been known to a dwindling band since the British forced Sikhs to give up arms in the 19th Century."
"On his first day of training, the frail old man handed him a stick and instructed Mr Singh to hit him. When he tried, the master threw him around like a rag doll.
"He was a frail old man chucking me about and I couldn't touch him," he says. "That definitely impressed me."
Mr Singh spent the next 11 years on his aunt's farm, milking the buffalos in the morning and spending every day training with his master."
"But even his most advanced pupils have only recently reached the stage where they can fight him with weapons without getting hurt.
Shastar vidya often gets confused with Gatka, a stick-fighting technique that was developed during British occupation of Punjab and was widely practised among Sikh soldiers in the British army.
Though it is a highly skilled art it was developed for exhibition rather than mortal combat. It is much easier to practise in public.
By working to revive a culture and practice that left the mainstream more than 200 years ago, Mr Singh has come up against a lot of resistance from within the Sikh community.
He says he received 84 death threats in his first two years as a teacher, from other Sikh groups who disagree with the ideology of shastar vidya and the beliefs of the small Nihang sect, which he identifies with.
"It is not just martial technique, there is a lot of oral tradition and linguistic skills that has to be there as well," he explains.
Nihangs still maintain some tenets of the Hindu faith, they have three scriptures rather than one and these extra books contain influences from Hinduism.
Many Nihangs also eat meat and drink alcohol which orthodox Sikhs disagree with. Traditionally they also drank bhang, an infusion of cannabis, to get closer to God.
"Sikhism has gone through several stages of evolution," says Christopher Shackle , a former professor of South Asian studies at Soas, University of London. "When the Nihangs were formed at the end of the 17th Century they were a very powerful group but they became rather marginalised."
An Akali Nihang soldier in 1865 The Nihangs were further isolated when the British Raj defeated the Sikh state in 1849 and forced Sikhs to give up arms.
"The British introduced a shoot-to-kill policy," says weapons collector and historian Davinder Tool, adding that accounts of British army officers show some troops fired on any man with a blue turban and a firearm.
"There is a sense that the Nihang's got left behind by time," says Mr Shackle.
Mr Singh spends a lot of time travelling to India and Pakistan researching the art, searching for descendents of the Akali Nihang and adding to his vast collection of weapons.
So far he has only met four people who could claim to be masters, now all dead. The last of these, Ram Singh, whom he met in 1998, died four years later.
"Nidar Singh is like someone who has walked straight out of the 18th Century," says Parmjit Singh, who has worked on several books on Nihang culture with the master.
"He is like a window into the past."
He is also still hoping to be a door to the future, opening up the path for new practitioners of the art to follow."
