The Rajatarangini of Kalhana is a great source of the socio-cultural history of Kashmir. No history can be completed without knowing its socio-cultural aspects. The Rajatarangini of Kalhana is not merely a ‘River of Kings’, containing dry accounts of various dynasties, rulers and their activities in court or in the field of war, but it is a veritable encyclopaedia of information on the society and culture, the way of life, religious conditions, art and architecture and economic life of the period and so on. As such it becomes a significant source of information to be studied, analysed and interpreted. Through my research, I will specially focus on military castes depicted by Kalhana in his great book Rajatarangini. I will also try to find out the social status of this particular caste in the society of Kashmir. The deep study related to traditional Hindu caste system will also undertaken.