Auspicious time to begin construction in Vastu

  After appropriate land is found then it is important to consider the time to begin the constructions.  Matsya Purana gives following guidance in this regard.

If the home is Constructed in different months (Hindu/Vaishnava months) following are the results,
 
1. Caitra (March-April) - Disease.
2. Vaishakh (April-May) - gain cows & jewels,
3. Jyeshtha (May-June) - untimely death,
4. Ashada (June-July) - Gain of servants, wealth, and animals
5. Sravana (July-August) - getting servants,
6. Bhadrapada (August- September) - loss (in all respects)
7. Ashwin (September-October) - Death of wife
8. Kartik (October-November) - Gain of wealth and grains.
9. Margashersha (November- December) - Gain of opulent food.
10. Paush (December-January) - Fear of theft.
11. Magha (January-Feb.) - innumerable gains but fear of fire to home.
12. Phalgun (Feb.-March) - Gain of gold and many sons.
 
Following are the favorable nakshatras for beginning the construction,

Ashwini, Rohini, Mula, all three Uttara (Uttara bhadrabada, uttara phaguni etc.), Mrgashira, Svati, Hasta & Annuradhha.
 
Favorable Days to begin with construction of home - any day except Sunday and Tuesday.
 
Yogas unfavorable for beginning construction - Vyaghat, Shula, vyatipat, Atiganda, Vishkambha, Gandha, Parigha and Vajra.
 
Muhratas favorable - Shveta, maitra, Maahindra, Gaandhava, Abhijita, Rauhina, Vairaaja and Saavitra.
 
Strength of Sun and moon and also find some auspicious Lagna.
 
First of all there should be constructions of Pillars (with proper foundation).

The owner of land who wishes to construct a house should go at a time prescribed by the astrologer to the worthy site which has be ploughed, where sown seeds have sprouted and where Brahmanas and cows have stayed for a night, worship the deities with varieties of eatables, curds, coloured rice, fragrant flowers and incense, and honour Brahmanas and architects.  Then touching his head, breast, thighs or feet, according as he is a Brahmana, Ksatriya, Vaishya or Shudra, the owner should draw a line (with any object held in the hand) on the ground, at the commencement of the construction of a house.
 
Should the owner draw the line with his thumb, fore-finger, middle finger or with gold, silver, gem, pearl, curds, fruit, flower or coloured rice (barley), the result would be quite good.  On the other hand, should he draw the line with a weapon, he would be killed by a weapon; with a metallic (or iron) piece, he would suffer imprisonment; with ashes, there would be danger from fire; with straw, fear of theft; and with a wooden peice, trouble from the king.  A line that is crooked, and drqwn with the foot leads to trouble from enemies and misery; so is one that is ugly or not clear; one drawn with a piece of hide, charcoal, bone or tooth would cause disaster to the owner; one drawn in an anti-clock wise direction, hatred; and in a clock-wise direction, prosperity.  Harsh words, spitting and sneezing at the commencement are said to be inauspicious.

Vastu