वास्तु मण्डन (मण्डन सूत्रधार - गृह, राजप्रासाद, दुर्ग एवं नगर-वास्तु सटीक)

Ch. I – Miśrakādhyāyaḥ 41
135-136. At the time of alteration or at the commencement of a palace,
house and a garden, as well as while entering into the city or a
house for the removal of all sorts of evils, the Brahmins and other
guests should be worshipped with devotion and in this manner
one should start work by appeasing the Vāstu God.
137. Following this method, he who performs the worship of Vāstu ev-
ery year in his house or abode will not undergo any misery.
138. Neither he has any fear of diseases, nor loss of friends and
prosperity. He lives up to a hundred years and stay in heaven
for one Kalpa.
Thus ends the origin of Vāstu, its layout and the method of worshipping.
Now the Marmavāstu :-
139. A square or rectangular plot of land is to be divided into sixty-
four parts. Three lines of beams should be drawn in the centre
which run from East to West.
140. Three minor lines of beams should be drawn from South to
North. Diagonal lines known as Śirā are to be drawn from one
corner to another corner.
141. Likewise, the side lines should be drawn here and divided
accordingly. Eight measuring lines will form a lotus and six
measuring lines will form twelve Vajras.
Śūlas will be drawn on the four corners and Lāṅgalas on the
upper part of the vikarṇa.
142. The meeting points of the longer diagonals will be known as
Mahāmarma, Ambuja, etc.