Correct estimation of air quality is very import as it can affect our lives directly or indirectly. CSIR-CEERI has developed Metal oxide based gas sensing platform for Ammonia (NH3), Carbon monoxide (CO), Hydrogen sulphide (H2S), Nitrogen dioxide (NO2), Ethanol (C2H5OH), and Propanol (C3H7OH) has been developed and demonstrated. Developed gas sensors can be integrated with electronics to make a portable as well as fixed kind of gas detection/ analysis system. Gas sensors are characterized in controlled environment chamber to observe response at various gas concentrations. Operating temperature for different gases is adjusted by the Platinum micro-heater. Platinum being a noble metal exhibits stable electrical properties and mechanical properties even at higher temperatures. Developed system has the capability to monitor data wirelessly (IoT enabled).