Manasara Series (I. A Dictionary of Hindu Architecture; II. Indian Architecture according to Manasara-Shilpashastra; III. Manasara on Architecture and Sculpture: Sanskrit Text; IV. Architecture of Manasara: Translation; V. Architecture of Manasara: Illustrations; VI. Hindu Architecture in India and Abroad; VII. An Encyclopaedia of Hindu Architecture) v1.c6.s18.73

v1.c6.s18.73

"Fortresses are made inaccessible through ditches, thorns, rocks and deserts. The *Parika* fort is that which is surrounded on all sides by great ditches (parikhā); and the *Parigha* fort is known to be that which is protected by walls of bricks, stones and mud. The *Vana* or forest-fort is one which is encircled by huge thorns and clusters of trees. The *Dhanva-durga* is known to be that round about which there is no water. The *Jala-durga* or water-fort is that which is surrounded by great sheets of water. The *Giri-durga* or hill-fort is described as that one which is on the high level and is supplied with plenty of water. The *Sainya-durga* or troop-fort is that one which is defended by heroes well up in vyuhas or military defence, and hence impregnable.