In a world where people are talking about increase in the usage of non-polluting and renewable sources of energy, monitoring and controlling such biogas plants remotely becomes very important. Monitoring the properties like pH, temperature, pressure and total amount of gas produced and consumed will help in understanding the health of the biogas plant. The whole process of offline monitoring has to be replaced with an online automation system. To overcome the barrier of data connectivity issues in the rural area, GSM based data transfer has to be used. In this paper, an IoT based efficiency monitoring system for biogas plants is proposed. An Arduino micro-controller system is deployed and tested to measure the gas production and consumption. Android based application is designed to act as an SMS gateway which is a free replacement for commercial solution. A dashboard plotting the usage statistics is designed to help the plant administrator to monitor the parameters.