Letter Box of Indian Post office at Patanjali Yogpeeth, one of the largest Yoga institutes in India at Kankhal on the outskirts of Haridwar, Uttarakhand, India, Tuesday, March 27, 2012. The institute is Baba Ramdev's flagship project & has been set up for treatment, research & development in Yoga and Ayurveda, as well as the manufacturing of ayurvedic medicines. It is also the home of the University of Patanjali. Photo Credit: Indian Photo Agency