Mangal Pandey did not launch the first war for independence in India. Tilka Manjhi did, in 1771. Even the Hool revolt that Sido and Kanu led in 1855 preceded Mangal Pandey’s 1857 revolt. But despite ample evidence, India historians did not care to write a word about the Santhal revolt, says Vishad Kumar, on the occasion of ‘Hool Diwas’