Each Manu rules during an eon called a Manvantara. 14 Manvantaras make up a Kalpa, a period corresponding to a day in the life of Brahma. Every Manvantara has 1 Indra that means with every Kalpa 14 Indras changes. Thae Markandye Rishi is said to have a complete age of one Kalpa and in a Puran on his name called “Markandey Puran” the exact age corresponding to the human age or solar year is described in details. The following list is according to Vishnu Purana 3.1–2):
| Manvatara/Manu | Indra |
|---|---|
| Svayambhuva | Yajna (Avatar of Vishnu) |
| Swarochish | Vipaschit |
| Uttam | Sushaanti |
| Taamas | Shibi |
| Raivat | Vibhu |
| Chaakshush | Manojav |
| Shraaddhdev | Purandar (the present Indra) |
| Savarni | Bali |
| Daksha Saavarni | Adbhut |
| Brahma Saavarni | Shanti |
| Dharma Saavarni | Vish |
| Rudraputra Saavarni | Ritudhaama |
| Ruchi (Deva Saavarni) | Devaspati |
| Bhaum (Indra Saavarni) | Suchi |