Abstract: To design and implement a flexible and powerful home yet cost effective security system using the GSM technology is the main aim of this research. This novel idea came to our mind while participating in schneider go green challenge .In this growing world nothing is left untouched by technology, so for occupant’s convenience and safety a mobile based home security system is needed. The system is can detect burglary, leakage of cooking gas; smoke caused due to accidents effectively and after detecting such activity it sends a message to the owner number. Android cell phone application is used to control the whole process. The user can control all the features and systems remotely (outside) thorough the app. With the additional control for home appliance switching activating and deactivating the alarm system is also provided. Within the GSM covered region a person can be assured of complete safety of his/her house anywhere in this world.