According to their lawyer, Veena Thadani, it is no laughing matter. "It's true that laughter is contagious, but if 30 people laugh every day in your window and you wake up to the sound of this cacophony you do not start laughing. They encourage each other to laugh louder 'laugh through your belly! Laugh through your eyes! Laugh through your ears!' they shout," she said.

Despite a number of rulings, the police have not yet taken action against the laughing yogis because they are not a formal registered club.

Mumbai's High Court judges have now voiced their frustration that their order has not been enforced. "Solve this problem. This is (an) unnecessary headache ... people coming and laughing outside your house," said Justice Bobde.

Laughing yoga has grown in popularity throughout the world after it was developed by Mumbai doctor Madan Kartaria, who styles himself the 'Guru of giggling.' He began his 'movement' with just five followers in the early 1990s and has since inspired 6000 'laughter clubs' in 60 countries around the world.

These clubs have proliferated throughout India's public parks where groups of devotees throw back their arms and heads in unison and laugh in exaggerated breathing exercises.

Despite its 17 year history, crowds still gather to enjoy the spectacle and in many cases laugh along with them.

But according to Veena Thadani no one is laughing in the upmarket Mumbai suburb of Kurli, where residents are fighting for the right to be glum in peace.

"It's aural aggression. You can't be forced to hear sounds you don't want to hear. Everyone is miserable because these activities are outside their home every day. What if you want to get up late or you're not feeling well? They're still waking you up with this cackling," she said.

The rest is here:
'Laughter yoga' club causing 'mental agony' to neighbours