Correct Answer: (a) Kumbhalgarh Inscription (1460 A.D.)
Note: Kumbhalgarh was built by Rana Kumbha in 1458.
Kumbhalgarh inscriptions were found in the Mamadeva temple of Kumbhalgarh region. Kumbhalgarh inscription was engraved in 1460 AD and this inscription traces the history from the period of Guhil, who was the founder of Mewar to the region of Rana Kumbha.