As the technology is advancing in health care applications there is a growing need for changes in monitoring patients in hospital, mainly monitoring patients who admitted in hospital. CCTv's and other devices attached to wireless network may record the patient activities for entire day. These devices provide patient's context information which enables the system taking the decisions to handle critical situations. In this work we propose a context aware in-patient monitoring system which can be deployed in a hospital ward where wireless-sensor networks are available for acquisition of context information. The proposed system uses physical system and application information context along with previous medical history of the related patients. This system has been tested by considering a ward with 25 patients with different diseases and behaviors. The results are quite encouraging and it has been fault tolerant up to 80%.