Gruhapravesam for the new house to be done in an auspicious day and time. Vaastu days are good for graha pravesam. First the cow with cart should enter the new house, next the husband and wife with their family deity photo, the sumangalis and others thereafter.

Gruhapravesam should not be done one following days:

1. Eclipse + or - 3 days
2. New year + or - 7 days
3. First day of tamil month
4. Same star of the owner
5. No Simha rasi person in the opposite house
6. No thunder storm cyclone on Gruha Pravesh Day.
7. No main door, no flooring, no white washing of the building, pregnancy. no Tuesday/Saturday.
8. Moon in 8th house
   

VAASTHU POOJA
Swathi Vachanam	Pumpkin - 8 directions
Pradana sangalpam	Ganapathi homam
Vakradundar avahanam	Vaasthu navagraha homam
Kalasa sthapanam	Ishta daiva ahuthi
Punyahavasanam	Astha thik balaha pooja
Acharya varnanam	Poornahuthi
Jappam	Agni yathasthanam
Agni sthapanam	Dharmaraja pooja - stove
Milk Boiling	Brahmin dhakshana
Gruha pooja	Guest hospitalitv

 

From Bhagwat Gita

"They Who perform their work offering all results to me, who hold their hearts and minds steadfast in me in whatever they do, who worship their work, to them I offer the platform. Doubt it not that they will inexorably reach the top. "

- Bhagwat Gita 12.6/12.8