Come with us on a small trip back in time. About 500 years or so back. All you need is a car to drive you out of Bhopal. Or you could take any of the state transport buses plying the Panchmarhi route. Bump and clatter along till you reach the hamlet of Matkuli. Turn off now and head for Tamya, perhaps India's best-kept hill-station secret. Take the diversion from Tamya. Twenty-two km from Tamya, stop the car at Bijudhana and look down from the road. You are now standing at the edge a 79-sq km crevasse, sheer cliff faces dropping 2,000 feet and 500 years under you.