Agam Kuan, the unfathomable well, is an ancient relic of the
Mauryan Emperor Ashok. Situated a little distance away from Ashokas
Charitable Hospital in the Kumrahar
complex, is this famous Ashokan remain, the Agam Kuan, which is believed
to be a part of the legendary hall created by Ashoka.

Fa Hein relates that Ashoka, in course of his distant journeys had
encountered the kingdom of Yama and accordingly thought of building a
hall, resembling the one he had seen there. Later, Ashoka demolished the
hall and embarked on projects of compassion and piety