Step 1: Mangarh hill lies on the Rajasthan–Gujarat border in the Banswara region, and is called the "Jallianwala Bagh of the Bhils". Step 2: Govind Guru (Govind Giri) organised the Bhils through the Sampa Sabha and the Bhagat movement against forced labour and social evils. Step 3: On 17 November 1913 the British forces fired on the gathering at Mangarh, killing a large number of tribals. Step 4: Motilal Tejawat led the Eki movement (Bhomat region), Birsa Munda was in Jharkhand, and Alluri Sitarama Raju was in Andhra Pradesh. Answer: Govind Guru.