The main hall is equally important part of the house-vastu, because the maximum moving about and most of the activities of the family members and the visitors is in the hall only. As it is the main part of the house, the energy spreading in all the rooms first enters the hall. Considering this various Yantras are created and these powerful effective Yantras are tilted in only frame. This ensures the maximum effect of the energy inside hall and to get an effective result of the energy in the hall and various types of energies should be collected under one-roof. Such frame should be fitted in the North-East or North-West corner of the main Hall.