Zayra prophesizes that "Morat (*) must fall" if the title figure will rise over a kingdom bounded by "Indus and Ganges".  
This "tragedy of wit's" prologue sees the author "damn his laborious Trifle of a Play", which drew mostly from a history by Francois Bernier.  Dianet bears bad news to the title figure in it, while it centers on a love triangle involving the "captive queen", Indamora.  Zayra prophesizes that "Morat (*) must fall" if the title figure will rise over a kingdom bounded by "Indus and Ganges".  For 10 points, name this Restoration play by John Dryden set in India and named for the last great Mughal emperor.
This "tragedy of wit's" prologue sees the author "damn his laborious Trifle of a Play", which drew mostly from a history by Francois Bernier.  
{Aureng}-{Zebe}, or The Great {Mogul}