The Uttar Pradesh Police formed an 18-member Special Investigation Team (SIT) to probe the death of Akhil Bharatiya Akhada Parishad president Mahant Narendra Giri and detained a disciple of the seer in Haridwar. <br /> <br />Meanwhile, Chief Minister Yogi Adityanath said all aspects related to the death are being investigated and the guilty will not be spared. <br /> <br />The seer, who was the president of the largest organisation of sadhus in India, was found hanging by his disciples at Baghambari Muth in Allahabad on Monday.