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

Ch. I – Miśrakādhyāyaḥ 45
151. If the thread is torn or the pebbles of the measuring thread are
displaced, then there is a chance of fear. If the peg faces down-
wards, there may be disease, so one should take care in placing
the nails.
One should start work according to the eightfold procedure of
con- struction .
152-153. Muñja is conducive to the auspicious look and cotton (Kārpāsa)
leads to support. Wood is congenial for writing according to the
eightfold procedure.
Thus ends the discourse on pegs.
154. In a Vāstu, resting on Nāga, if the first digging is made on the
tail, back or face it will cause fear. But if it is done on the left side
of the womb it is regarded as auspicious and is known as Kukṣi.
155. If the Sun is on the three Zodiac signs of Leo and others and
digging is done on that side where the Nāga faces, then it is
auspicious and the digging is to be made serially from Vāyu
(North-West), Maheśa (North-East), Agni (South-East), and
Nairṛta(South-West).
Thus ends the rules of Nāgavāstu.
156-157. To know about Śalya one should draw a chart of serpents
with 28 chambers (Koṣṭha). There will be five slanting lines
drawn upwardly with eight on the other side. Maghā will be on
the lower part of the door frame and Kṛttikā will be on the
centre of the door. On the back row one should put the name of
Svātī and other seven stars serially.
158. Citrā, Punarvasū, Raudra (Ārdrā), Mṛgaśirā, Dhaniṣṭhā, Śravaṇā, Abhijit
-these stars are to be written on the second row.