Congratulations! Very beautiful pieces.
Classic Indian wootz blade, probably early 19 century, with more recent (probably around 1900) hilt.
Most daggers with one piece rock hilts are not suitable for combat use as the joint between the hilt and the blade cannot withstand strong shocks, and the hilts themselves are prone to cracking. They became popular around 1900 when daggers gained more of a decorative/status role.
My two cents...