About Indonesian Language
According to Wikipedia.org, Indonesian is the official language of Indonesia. It belongs to the Malayo-Polynesian branch while the standard dialect is Malay. When Indonesia became independent they declared Indonesian as their official language in 1945. Indonesian is spoken by 23 million people while it is the second language of 140 million people. As most Indonesians are bilingual they know more than three languages. Besides Indonesia, this language is also spoken in the Netherlands, the Philippines, and Singapore. Several dialects are spoken in various areas. The northern dialect is known as Malay while the southern dialect is most commonly spoken in Indonesia. There are regional dialects that are spoken in both north and south of Indonesia. It consists of six vowels but the sound system is similar to Malay.
About Odia (Oriya) Language
According to Wikipedia.org, Odia language is an Indo-Aryan language. It is spoken by 50 million speakers as this language is recognized officially. The Indian constitution is using this language officially for its purposes. Odia is also the official language of Odisha (Oriya) which is a prominent Indian state. This language has several dialects but Mughalbandi (Coastal Odia) happens to be the standard dialect. It is also the official language for education in this state. Odia belongs to the eastern group of the Indo-Aryan family. It is derived from Ardhamagadhi Prakrit. You will be surprised to know that Odia shares a lot of similarities with Bengali. Even the first classic poetry started to shape up with this language. This language is heavily inspired by Dravidian languages. The lexicon is also associated with Tamil, Telugu, and Marathi.