According to the Hindu Scriptures “Gandharva” were sons of Kashyap Rishi from his wife Arishtā, they were divine beings just like the Devas and Apsaras. They were skilled in warriorship and are masters in creating illusions, they were custodians of fine arts, music and dance. They were renowned for their physical beauty.
As per Vedās there are two categories of gandharvas, the first is the “Manushya Gandharvas”, and the second is the “Deva Gandharvas”. On the earthly planet there are many realms of existence that are inaccessible to the ordinary humans. These realms exist on high dimensions of space. According to the Vedic conception of reality there are 64 dimensions of existence, of which ordinary humans interact with three. The manushya gandharvas live in higher dimensions within the earthly realm of existence. There are many descriptions within the Puranas of lands existing on this planet that are inaccessible to us.
When Arjuna, the third Pandava, went to the heavens in search of celestial weapons, the gandharvas at Indra’s court taught him singing and dancing. Another gandharva gave an enchanted war chariot and some divine weapons to Arjuna, and on another occasion, imprisoned Duryodhana and his whole pleasure camp when the two groups entered into a dispute over the rights to a picnic spot.
Gandhara is a kingdom mentioned in Ramayana and Mahabharata as located in what is modern day western Pakistan/Swat valley in Afghanistan, what we call as Kandahar today.
Gandhara Kingdom is also famous artisans, musicians and craftsmen as well as for horse.breeding and the people were renowned for their physical beauty,. But Mahabharat specifically mentions Gandhara as different from Gandharva
Famous Gandhar cities are Purushpura (Peshawar), Pushkalavati (named after Pushkala son of Bharat) , and Takshila (named after Taksha son of Bharat) were established by Bharat after he conquered Gandhar,his sons and descendents ruled after him. These were Suryavanshi kings, leading upto the time when Chandragupta Maurya took over this territory.