Human life passes through various phases from birth to death, yet the most important and unavoidable phases of human life are birth and death. Both birth and death have a period to complete the process, which includes the ten days that defile the environment due to physical and biological reasons. This period of impurity in the house is called Sutak in Hinduism that needs to be cleaned by doing Shuddhikaran Puja. We need to do Shuddhikaran puja on the eleventh day of childbirth or after ten days of death in the family to cleanse the family and environment of the house. Sutak at the time of birth involves not performing any religious and auspicious activities in-house or out. Family members do not go to temples pr indulge in any public activity, though the family is happy. This is done to avoid spreading the infection to the newly born child and his mother who grows week due to giving birth to the child. No outside evil forces or negative force comes in the house if the family will avoid going out. The mother and the child are also not allowed to mingle with outsiders for the same reason. Moreover, the women keep on discharging fluids after the childbirth which has an odor, so, the mother is also not allowed to perform any activity in the kitchen of the house for ten days, and she does all these activities only after completing ten days of confinement in her room. The Sutak at the time of death is called Patak and the families do not perform any religious or auspicious activities during the period of Patak. This period signifies the period of mourning and the period during which the infection of the dead and his last rites can be avoided. The Shuddhikaran Puja after the child-birth or a death in the family brings purification in the house along with peace and bliss.