Yoga guru Jaggi Vasudev, also known as Sadhguru, on Monday began his 30,000-kilometre motorbike journey from London to India as part of his 'Save Soil' awareness campaign. The 64-year-old's 100-day tour will take him across Europe and the Middle East, where he'll be meeting celebrities and environmentalists. "I'm not a scientist...but I know there's a soil crisis," he said earlier.