Kinnaraya or Kinnarayo also Kinnara are a social group or caste

Caste

Caste is an elaborate and complex social system that combines elements of endogamy, occupation, culture, social class, tribal affiliation and political power. It should not be confused with race or social class, e.g. members of different castes in one society may belong to the same race, as in India...

 amongst the Sinhalese

Sinhalese people

The Sinhalese are an Indo-Aryan ethnic group,forming the majority of Sri Lanka,constituting 74% of the Sri Lankan population.They number approximately 15 million worldwide.The Sinhalese identity is based on language, heritage and religion. The Sinhalese speak Sinhala, an Indo-Aryan language and the...

 of Sri Lanka

Sri Lanka

Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka is a country off the southern coast of the Indian subcontinent. Known until 1972 as Ceylon , Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar and the Palk Strait, and lies in the vicinity of India and the...

. Like the Burakumin

Burakumin

are a Japanese social minority group. The burakumin are one of the main minority groups in Japan, along with the Ainu of Hokkaidō, the Ryukyuans of Okinawa and Japanese residents of Korean and Chinese descent....

  of Japan and Paraiyar

Paraiyar

Paraiyar, Parayar, and Sambavar, anglicised by Europeans as Pariah are a social group found in the Indian states of Tamil Nadu, Kerala and in Sri Lanka . In the Indian state of Tamil Nadu, though they have been enumerated under three different caste names, they have generally been referred to as...

 of the neighboring Tamil ethnic group in Sri Lanka as well as Tamil Nadu

Tamil Nadu

Tamil Nadu is one of the 28 states of India. Its capital and largest city is Chennai. Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Pondicherry, and the states of Kerala, Karnataka, and Andhra Pradesh...

 state in South India

South India

South India is the area encompassing India's states of Andhra Pradesh, Karnataka, Kerala and Tamil Nadu as well as the union territories of Lakshadweep and Pondicherry, occupying 19.31% of India's area...

 they were segregated from the mainstream society yet played a vital role as mat weavers for the mainstream community.
As the mainstream Sinhalese speakers claim North Indian ethnic origins the presence of many South Indian type functional Jatis like the Kinnaraya indicate a complex migration history from India to Sri Lanka.