This mound, on which Samudra Koop & Ulta Qila can be found, is also called ‘Kot’. A big walled effectively is located over the mound. It is thought that this ‘Samudra Koop’ could be the just one, and that is aptly described in Matsya Puran & Padm Puran although https://yamuna-bridge99763.arwebo.com/38944071/new-yamuna-bridge-prayagraj-can-be-fun-for-anyone