Haviryaga
The Haviryaga or Haviryagna is a Hindu ritual. It is a type of Yajna associated with the Vedic sacrifices of uncooked offering, and regarded to achieve various spiritual and material benefits.
The term "Haviryaga" means "a sacrifice in which havis, i.e. uncooked food is used". Unlike other types of sacrifices, such as Somayajna, which involve the offering of soma juice, a Haviryaga utilizes food materials such as rice, barley, ghee, and milk. The main purpose of such sacrifices is to invoke blessings and ensure material prosperity and happiness in life.
Types
The seven types of Haviryaga are:AgnyadhanaAgnihotra-HomaDarsa-purnamasa IstisAgrayanestiCaturmasyaNirudha Pasubandha- ''Sautramani''
Agnyadhana
A Vedic sacrifice requires three sacred fires namely Ahavaniya, Garhapatya and Daksinagni. The purpose of Adhana is to entertain these three sacred fires.It has regular precribed procedure for its function. The fire is constantly maintained in Garhapatya to later utilize it to distribute fire to the rest two fire places for sacrifice as per he rules mentioned in the Srauta Sutras.
Almost the entirety of Homas is performed in the Ahavaniya fire. The sacrificial fire is later called Ahitagni from the day of Adhana. If the fire of Garhapatya gets extinguished, the process of Punaradhana is carried out, and the Ahitagni has to go through the process of Adhana once again.