Tiddim/Tedim also known as Tedim Chin are Zomis which is an Umbrella Group of different tribes in India, Myanmar and Bangladesh. They generally inhabited Chin State, Southern Manipur and Chittagong hills Bangladesh. They speak the Zomi language (locally known as Zomi pau) which had a total of about 545,000 speakers in 1990. About 380,000 of Zomi lived in Myanmar with some 230,000 of them residing in India, Bangladesh and further other countries.The Zomi are numbered at about 617,000 people. About 70 percent of the Zomi are Christians, with the remainder practicing indigenous religions.

The Bible was translated into Zomi in 1983, although the New Testament had been translated into and published in Zomi in 1932.

The Zomi reside primarily in Chin State in Burma and in adjacent parts of India, such as Manipur and Mizoram.