Enterprise Resource Planning (ERP) Systems are amongst the most popular Information Technology (IT) software being adopted in organizations globally. Such systems offer strategic and operational improvements to firms. ERP system is an enterprise-wide information system designed to coordinate all the resources, information, and activities needed to complete business processes. An ERP system supports the business system that maintains a single database for a variety of business functions such as Manufacturing, Supply Chain Management, Financials, Projects, Human Resources and Customer Relationship Management. Now a days ERP systems has been adopted by various organizations as part of their business growth strategies and play an important role for small scale and large scale industries to run all their major functional and process operations (Batada and Rahman, 2012). ERP systems have been implemented by different industries across the world both in production and service domains. Recently, service organizations have invested considerable resources in the implementation of Enterprise Resource Planning (ERP) systems to improve efficiency, cost effectiveness and quality of service operations of the various service industries. Tourism industry is one which is depended on integrated information network that plays a critical role in enhancing business success relationship. The tourism industry has evolved and modernized considerably. An important feature of an ERP is that it functions from a single comprehensive database for the entire organization, with real time connectivity between different functions and complete integration of front, mid and back office in the Tourism Industry. The integrated solution enables a tight financial control and reduced losses due to inefficient reconciliation, duplication of work, and possible delays. The present paper is to conduct a study on understanding the relevance and applications of the ERP systems in tourism from the supply side perspective incorporating the opinions of the decision makers/managers representing the key tourism organizations having higher applications of ERP systems. Further to relate the usability of the ERP systems with the output mechanism service performance has been taken as an output indicator for which consumers perceptions have been taken in the study. The study finally examines impact of applications of ERP systems on service performance with reference to Tourism and Hospitality industry.