Name of trust Patanjali Yogpeeth
Estimated number of followers 400 million
Source of income Yoga camps, books, CD and VCD sales, property, food park
Estimated annual turnover 11 billion rupees (Dh903.6 million)
The yoga guru is well known for introducing the masses to Kapalbhati, a form of breathing exercises that he claims can heal ailments including diabetes, heart blockages and obesity.
Name of trust Asaram Bapu trust
Estimated number of followers 20 million, mostly in India
Source of income Religious sermons and hymns on television, CD and VCD sales, property
Estimated annual turnover 5bn rupees
Asaram Bapu fell from grace recently after a sting operation by a television news channel revealed his involvement in a sex scandal. It was also revealed that his trust defaulted on income tax payment of 21.5m rupees.
Name of trust Art of Living Foundation
Estimated number of followers 300 million in 151 countries
Source of income Art of living spiritual healing programmes. Its "corporate executive programme", for example, costs 300,000 rupees per person.
Estimated turnover 9bn rupees
This is considered one of India's slickest spiritual movements. It owns a sprawling ashram outside Bangalore. It boasts an artificial lake, a helipad, dining halls, cyber cafes, a bookshop and pharmacies.
Name of trust Shree Sitaram Seva trust
Estimated number of followers 20 million
Sources of income Donations, preaching of Hindu spirituality in lectures around the world, schools and hospitals run by the trust
Estimated annual turnover 1.5bn rupees
* Anuj Chopra