Visvedevas

The Visvedevas () ( "" "all-gods") are the various Vedic gods taken together as a whole. In the Rigveda a number of hymns are addressed to them, including (according to Griffith)
1.89,
3.54-56,
4.55,
5.41-51,
6.49-52,
7.34-37, 39, 40, 42, 43,
8.27-30, 58, 83
10.31, 35, 36, 56, 57, 61-66, 92, 93, 100, 101, 109, 114, 126, 128, 137, 141, 157, 165, 181.
RV 3.54.17 addresses them as headed by Indra,
The dichotomy between Devass is not evident in these hymns, and Devas are invoked together such as Mitra god and Varuna god.
Though many devas are named in the Rig Veda only 33 devas are counted, eleven each of earth, space and heaven. In later Hinduism, they form one of the nine ganadevatas (along with the Adityas, Vasus, Tushitas, Abhasvaras, Anilas, Maharajikas, Sadhyas, and Rudras). According to the Vishnu Purana and Padma Purana, they were the sons of Vishvā, a daughter of Daksha, enumerated as follows: 1. Vasu 2. Satya 3. Kratu 4. Daksha, 5. Kala 6. Kama 7. Dhrti 8. Kuru 9. Pururavas 10. Madravas, with two others added by some, 11. Rocaka or Locana, 12. Dhvani Dhuri
Sometimes it is unclear whether a reference to "vishve-devas" refers to all Devas collectively, as in the Rigveda, or to the specific group as enumerated in the Puranas.
According to Manu (iii, 90, 121), offerings should be made daily to the Visvedevas. These privileges were bestowed on them by Brahma and the Pitri as a reward for severe austerities they had performed on the Himalaya.
The Viswadevas incarnated on Earth due to the curse of sage Vishwamitra, as the 5 sons of Draupadi with the Pandavas - the Upapandavas. They returned to their original form after being killed by Ashwatthama at night.
The Visvedevas are the most comprehensive gathering of gods. They answer to the concern that no divinity should be omitted from praise.