This paper discussed about the trends and development Institutional Repository (IR) in south Asian countries. And it further deals about the name of the repositories, size, type, content and languages and various software. South Asian countries like India, Pakistan, Nepal, Bangladesh and Sri Lanka have institutional repositories in their respective libraries but Bhutan and Maldives are not having any repositories. Among the 75 institutional repositories it has 3, 46,785 records which consists of 321435(92.69%) records in India, 8540 (2.46%) in Bangladesh, 10027(2.89%) records in Pakistan, 6688(1.93%) records in Sri Lanka and 95(0.03%) records in Nepal.