This paper presents an ontology based formalism of existing system for TB (Tuberculosis) control and management in India that is RNTCP (Revised National TB Control Programme). India in recent years has been highest TB burden country. There are some geographical areas of India which are badly affected by TB. The formalism presented in the paper will help in further investigation /research of a new improved method in developing a decision support system for different government / NGO (Non-Government Organization) organizations.