Placing a pyramid can help curb vastu defects in the house. It is important to place them in a specific location for the best results. Pyramids are said to be energized instruments. They have their own power. Hence, they keep negative energies at bay, thus, facilitating prosperity in the house. If the sides of the plot of your house are not parallel to the main directions, then 9, 36, 54 or 81 pyramid will be able to help you. Vithi Shool Dosha can also be removed using 9 pyramid.
To know in detail, watch this video:
