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.
About Chinese (Simplified) Language
According to Wikipedia.org, Chinese is the official language of China and Hong Kong. The simplified characters are one of the major written scripts in China. These characters are not only used in China but other places in the world. Most of the children studying in Malaysia and Singapore all know simplified Chinese. They are also used in Hong Kong, Taiwan and even Japan. The traditional characters have been a choice in books and texts majorly. However in the modern era it covers the majority of contemporary Chinese text. In China the dialect of Chinese people is known as mandarin. It is studied with simplified characters of Chinese. You will be surprised to know that simplified characters are not used for writing. About 1.3 billion people in the world speak Chinese language.
