SANJAY SUBRAHMANYAM Portrait of the historian as a young man who not that far back in recent history was feared as the enfant terrible of Indian history, has just won the Infosys Prize for History 2012. Subrahmanyam's achievement is based in part on his utterly unusual genius for mastering virtually every European and South Asian language that the Indian historian needs. This has enabled him to range temporally from medieval to modern South Asian history, spatially from the Mughal to the Ottoman to the empires of Europe, and 'generically' from biography to travel literature to political thought to economic and cultural history to the acerbic critical essay. It may even be accurate to say, in fact, that no single historian of South Asia has ever been able to authoritatively span as large a terrain as Subrahmanyam. And the fellow's only just crossed his forties -- leaving, we hear, a fair number of fellow historians foaming at the mouth, specially as Su