The word in Sanskrit and Pali means "flock, troop, multitude, number, tribe, category, series, or class". It can also be used to refer to a "body of attendants" and can refer to "a company, any assemblage or association of men formed for the attainment of the same aims". The word "gana" can also refer to councils or assemblies convened to discuss matters of religion or other topics. In Hinduism, the s are attendants of Shiva and live on Mount Kailash. Ganesha was chosen as their leader by Shiva, hence Ganesha's title or, "lord or leader of the ".
As Shiva's attendants
In Hinduism, the gana are attendants who reside in chthonic and liminal locations such as cemeteries and charnel grounds. The gana also attend Shiva on Mount Kailash. The story of creation of Virabhadra from Shiva's lock and the destruction of Daksha by Virabhadra and his ganas are popular stories from the Puraṇas.
A detailed analysis of the GANAS obtains in chapter 108 of Shanti Parva in which Yudhishthira asks Bhishma about the ganas: how do they increase, how do they defend themselves from the dividing-policy of enemies, what are their techniques in conquering enemies and in making friends, how do they hide their secret mantras. Bhishma's answers to these questions were recorded in the form of shlokas from 16 – 32 in Shanti Parva.
In Vedas
Ganas were narrated in Vedas in the form of assemblies of warriors as is clear from the following sutras of Rigveda : Ganatantra means a state run by assemblies. The representative members of clans were known as ganas and their assembly as sanghas, there chief as ganadhipati or Ganesha and Ganapati.
Sangam literature
of Tamil describes the offerings for Ganas. In Silapathikaram one of the five epics of Tamil by Ilango Adigal saying the offering for eighteen kind of Ganas.
The Buddhist literature Mahabagga mentions that: It indicates that an officer used to see the number of ganas and their koram in the Rajasabha. Buddhist books like ‘Pali-pitaka’, Majjhamnikaya, mahabagga, Avadana shataka mentioned ganas and sanghas. During Buddha's period India had 116 republics or ganasanghas. In Buddhist times, Gaṇas were assemblies of the Sanghas, early democratic republics known as Gaṇa-rājyas, literally "rule of the assembly", a term paralleling demo-kratia or sovietrepublic. The term was revived in Bhārata Gaṇarājya, the official name of the Republic of India. Buddhaghosa mentions the palaces of the Ganadeva-puttas among those seen by King Nemi as Mātali led him through the world of the devas. This term seems to be absent in the corresponding Jātaka. It is possible that these deities are associated with the Gaṇas of Hinduism.