The correct option is D 1500
In October 1913, Govind Guru gave a message and urged the Bhils to assemble on Mangarh hills. The Bhils assembled in large number along with arms and ammunition. Getting concerned by the unity of Bhils, The British sent a massive army, which reached the Mangarh hills and opened fire on the Bhils in order to disperse them. According to official estimates, 1500 Bhils were killed in this action.