To mark the 73rd Birthday celebrations of Prime Minister Narendra Modi, the Gujarat Yog Board is organising two-day Yoga shivirs at 73 different locations across the State from today. Talking to Akashvani, Chairman of Gujarat Yog Board Shishpal Rajput said nearly 73 thousand Yog Sadhak will participate in the shivirs which are being organised to wish a long life to the Prime Minister through Yog.