कामिक आगम: पूर्व भाग (अष्टाविंशति मूल शैव आगमों का प्रथम एवं सर्वोच्च आगम महाकोश)

Another man.d'ala called vr'ttabhoga is associated with two diagonal lines
(and 289 grids). Va'stu Brahma' is seated at its center occupying 121 grids.
The directional deities Indra and others, who are eight in number, occupy
five grids each. The four deities Aryama' and others, seated facing Brahma',
occupy thirty-two grids each. The corner deities of the inner belt Apavatsa
and others, who are eight in number, occupy two grids each. This man.d'ala
known as vr'tta bhoga should be applied for village and such other settlements.
एकोनविंशति प्राञ्चि तावन्तिस्युरुदञ्च्यपि ।
कर्णाष्टकमिदं विद्यात् अग्रहारादि पूजितम् ।। ८३
ekonavims'ati pra'n"ci ta'vantisyu rudan"cati /
karn.a's"t'akam idan vidya't agraha'ra'di pu'jitam // 83
On drawing 19 east-west lines and 19 north-south lines across the east-west
lines, the man.d'ala known as karn.a's"t'aka is formed. This