The ability to autonomously track and localize odor with the help of gas sensors mounted on a mobile platform has numerous applications. Tracking and Odor source localization is used by animals for finding food, finding mates, etc. It is also used in the application like finding and localizing the hazardous material spills or leaks (like gas leakages), chemical hazardous sources, bomb detection, mine detection for safety and security. Odor localization can be also used for search-and-rescue missions, terrestrial exploration, and natural resource extraction. In industry and domestic gas pipes detection of leakage plays in important role .Above applications driven the researcher to devise electronic systems that can perform odor tracking activities automatically,