nice sword.
think this is definately rick's (rswords) territory, as i know he's done some research on these. they take direct influence from the early tulwar form of the 16thC (elgood shows a genuine moghul one in his latest book).
the blade looks as if its been cut down (the fullers travel to the end). wonder if the blade was taken from a firangi, as the style is of the same type.
i've always loved the shape of these things, maybe because i like early indian pieces.
edit -
ariel, we crossed posts, and you got in there first with the elgood link