what is the study of agnipurana? what are the contents in that ?

Agni Purana, one of the major eighteen Puranas, a Hindu religious text, contains descriptions and details of various incarnations (avatars) of Vishnu. It also has details account about Rama, Krishna, Prithvi, and the stars. It has a number of verses dealing with ritual worship, cosmology, history, warfare, and even sections on Sanskrit grammar, meter, law, medicine, and martial arts. Tradition has it that it was originally recited by Agni to the sage Vasishta.

Its composition is either dated to the 8th-9th century[1][2] or the 10th-11th century[3]

The presently available Agni Purana consists 383 chapters. The last chapter of the text gives a list of fifty topics discussed in the text. After the customary opening (chapter 1), the text describes the ten avataras of Vishnu in details. Chapters 2-4 deal with the Matsya, the Kurma and the Varaha avataras respectively. Next seven chapters (5-11) are the summaries of the seven Kandas of the Ramayana. Chapter 12 is a summary of the Harivamsha. Chapters 13-15 narrate the story of the Mahabharata. Chapter 16 describes Buddha and Kalki as the avataras of Vishnu. Chapters 17-20 describe the five essential characteristics of a Purana. Chapters 21-70 consist a discussion between Narada, Agni, Hayagriva and Bhagavan. These chapters deal with the religious bathing, construction of a Kunda (sacrificial pit), the Mudras (the positions of fingers during worship), the mode of worship of Vasudeva, Samkarshana, Pradyumna and Aniruddha, consecration of an image, architecture of a temple, iconography of the images, the worship of Salagrama, the rules for the installation of the images and repair of a temple. The subject of chapter 71 is the worship of Ganesha. Chapters 72-105 relate to the worship of the Linga and the several manifestations of Devi. These chapters also contain the discussions on the method of establishing Agni (sacrificial fire), Canda worship, Kapila worship and consecration of a temple. Chapter 106 discusses about the Vastu related to the cities. Chapter 107 is devoted to the creation of Svayambhuva Manu. Chapter 108 is the Bhuvana-Kosha (the description of the universe). Chapters 109-116 describe a number of the Tirthas. Chapter 117 deals with the ancestral rites. Chapters 118-120 describe the Puranic concepts on the geography of India and the other parts of the world and also the Puranic perceptions about the distances between various regions of the world. Chapters 121-149 deal with various aspects of astronomy and astrology. Chapter 150 deals with the periods of the Manvantaras and the names of the Manus. Chapters 151-167 deal with the duties associated the different Varnas. Chapters 168-174 discuss about the expiations for various kinds of sins. Chapter 175-207 describe about the performances of a number of Vratas. Chapters 208-217 describe about various religious gifts and vows. Chapters 218-248 deal with the various aspects of the statecraft. Chapters 249-252 discuss in details about archery and the weapons associated with it. Chapters 254-258 discuss on the vyavahara (judicature and law). This part of the text is literally same as the Mitakshara. The next chapters (259-271) deal with miscellaneous topics regarding the perusal of the Vedas. Chapter 272 deals with the gifts to be made when the Puranas are read. This chapter contains a list of the Puranas and the number of verses each Purana contains. Chapters 273-278 deal with the genealogy of the Puranic dynasties. Chapters 279-300 deal with the various branches of medicine. Chapters 301-316 deal with the worship of Surya

The Agni Purana, one of the 18 Mahapuranas, a genre of Hindu religious texts, contains descriptions and details of various incarnations (avataras) of Vishnu, one of the five primary forms of God.

Robot has said it in his own excellent way.