Innovative teaching methods have to be adopted in today’s mindset of youngsters. Outcome-based education have to a giant leap forward to improve technical education in India and ensure learning registers in their young minds and make them compete with their competitors around the world globally. This can be achieved only if the knowledge posed by them is deep routed and are strong with their concepts. Innovative teaching methods which are the most subsets of Outcome-based education is a strong encouraging platform for students to encourage learning the concepts from their peers by which they encompassed with easy way learning. They seem to have more focused and fun during their learning process. Finally, the outcome is measured through knowledge of Via their internal assessment. As all the engineering colleges follow NBA accreditation in deciding the quality of the students, they have also streamed and asked to adopt modern ways of teaching such as ICT, Model Demonstration, flip class, poster presentation, etc. In such an attempt an effort has been taken to show how effective will be peer to peer learning in the form of flip class. In this present paper, a case study is developed through CO-PO mapping and attainment for Mechanical Engineering Students of Tier-II.[2] for the VII semester Mechanical Engineering Students for the subject “Operations Research