Oriya officially Odia from November, 2011, is an India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

n language

Language

Language may refer either to the specifically human capacity for acquiring and using complex systems of communication, or to a specific instance of such a system of complex communication...

, belonging to the Indo-Aryan

Indo-Aryan languages

The Indo-Aryan languages constitutes a branch of the Indo-Iranian languages, itself a branch of the Indo-European language family...

 branch of the Indo-European

Indo-European

Indo-European may refer to:* Indo-European languages** Aryan race, a 19th century and early 20th century term for those peoples who are the native speakers of Indo-European languages...

 language family. It is mainly spoken in the Indian state

States and territories of India

India is a federal union of states comprising twenty-eight states and seven union territories. The states and territories are further subdivided into districts and so on.-List of states and territories:...

s of Orissa

Orissa

Orissa , officially Odisha since Nov 2011, is a state of India, located on the east coast of India, by the Bay of Bengal. It is the modern name of the ancient nation of Kalinga, which was invaded by the Maurya Emperor Ashoka in 261 BC. The modern state of Orissa was established on 1 April...

 and West Bengal

West Bengal

West Bengal is a state in the eastern region of India and is the nation's fourth-most populous. It is also the seventh-most populous sub-national entity in the world, with over 91 million inhabitants. A major agricultural producer, West Bengal is the sixth-largest contributor to India's GDP...

. Oriya is one of the many official languages in India; it is the official language of Orissa and the second official language of Jharkhand

Jharkhand

Jharkhand is a state in eastern India. It was carved out of the southern part of Bihar on 15 November 2000. Jharkhand shares its border with the states of Bihar to the north, Uttar Pradesh and Chhattisgarh to the west, Orissa to the south, and West Bengal to the east...

.
Oriya is the predominant language of Orissa, where Oriya speakers comprise around 83.33% of the population according to census surveys.
Outside Orissa, there are also significant Oriya-speaking populations in other linguistic regions, such as the Midnapore District

Midnapore District

Midnapore district is a former district of the state of West Bengal, India. This district was bifurcated on January 1, 2002 into the Purba Medinipur district and the Paschim Medinipur district.-References:...

 of West Bengal

West Bengal

West Bengal is a state in the eastern region of India and is the nation's fourth-most populous. It is also the seventh-most populous sub-national entity in the world, with over 91 million inhabitants. A major agricultural producer, West Bengal is the sixth-largest contributor to India's GDP...

, the Singhbhum

Singhbhum

Singhbhum was sometime a large district in the present-day Indian state of Bihar. Chaibasa was the district headquarters of the erstwhile Singhbhum district. Earlier this area was a part of Orissa's Gajapati Empire...

, Seraikela Kharsawan district of Jharkhand

Jharkhand

Jharkhand is a state in eastern India. It was carved out of the southern part of Bihar on 15 November 2000. Jharkhand shares its border with the states of Bihar to the north, Uttar Pradesh and Chhattisgarh to the west, Orissa to the south, and West Bengal to the east...

, the Srikakulam

Srikakulam

Srikakulam is a town, municipality and headquarters of Srikakulam district in the north-eastern Andhra Pradesh, India. It is part of Srikakulam Assembly constituency and Srikakulam Parliament Constituency. Srikakulam was formerly called as Gulshanabad during Muslim rule and was headquarter of...

, Vizianagaram

Vizianagaram

Vizianagaram is the main city of the Vizianagaram District of north-eastern Andhra Pradesh in southern India. Vizianagaram district was formed on 1 June 1979, with some parts carved from the neighbouring districts of Srikakulam and Visakhapatnam. It is, at present, the largest municipality of...

 & Vishakhapatnam District of Andhra Pradesh

Andhra Pradesh

Andhra Pradesh , is one of the 28 states of India, situated on the southeastern coast of India. It is India's fourth largest state by area and fifth largest by population. Its capital and largest city by population is Hyderabad.The total GDP of Andhra Pradesh is $100 billion and is ranked third...

,eastern districts of Chhattisgarh

Chhattisgarh

Chhattisgarh is a state in Central India, formed when the 16 Chhattisgarhi-speaking South-Eastern districts of Madhya Pradesh gained separate statehood on 1 November 2000....

 state.