Vastushanti Puja is the pooja included in Griha Pravesh, in Vastushanti, both Vastu pooja / havan is performed to generate the peaceful environment and also removing negative energies from the home or office. we have to worship for the five elements in the nature they are Aakash (sky), Vaayu(wind), Jalam(water), Agni (fire), Prudhvi (earth).
Vastu Purush who is the vital force, protector and lord of a home is the main deity while doing Vastushanti Puja. This event is most important to remove the Dosham of Vastu, and who ever the individual perform Vastushanti Puja will attains happiness and prosperity. Vastu Purush is the lord and deity of directions, is implore while doing this pooja, reciting of mantras is performed and pooja is done according to Shastras.