Vishnu Purana Consists of 6 Parts are Following
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1. Cosmology : The first Amsha (part) of Vishnu Purana presents cosmology, dealing with the creation, maintenance and destruction of the universe.
2. Earth : The second part of the text describes its theory of earth, the seven continents and seven oceans. It describes mount Meru, mount Mandara and other major mountains, as well as Bharata-varsha (literally, the country of Bharata) along with its numerous rivers and diverse people.
3. Time : The initial chapters of the third book of the Vishnu Purana presents its theory of manvantaras, or Manus-ages (each equals about 4.3 million years).This is premised upon the Hindu belief that everything is cyclic, and even Yuga (era, ages) start, mature and then dissolve.
4. Dynasties : The fourth book of the text, in 24 long chapters, presents mythical royal dynasties, starting with Brahma, followed by solar and lunar dynasties, then those on earth over the Yugas (eras), with Pariksit asserted as the "current king"
5. Krishna :The fifth book of the Vishnu Purana is the longest, with 38 chapters. It is dedicated to the legend of Krishna, as an avatar of Vishnu
6. Liberation : The pure and perfect soul is called Vishnu, states the text, and absorption in Vishnu is liberation.