regional integration has been a major development in the international relations of recent years. As such, Regional Integration Agreements has gained high importance. Not only are almost all the industrial nations part of such agreements, but also a huge number of developing nations too are a part of at least one, and in cases, more than one such agreement. The amount of trade that takes place within the scope of such agreements is about 35%, which accounts to more than one-third of the trade in the world. The main objective of these agreements is to reduce trade barriers among those nations concerned, but the structure may vary from one agreement to another. The removal of the trade barriers or liberalization of many economies has had multiple impacts, in some cases increasing Gross domestic product (GDP), but also resulting in greater global inequality, concentration of wealth and an increasing frequency and intensity of economic crises. The number of agreements agreed under the rules of the GATT and the WTO and signed in each year has dramatically increased since the 1990s. There were 194 agreements ratified in 1999 and it contained 94 agreements form the early 1990s. The last few years have experienced huge qualitative as well as quantitative changes in the agreements related to the Regional Integration Scheme. The top three major changes were the following: Deep Integration Recognition Closed regionalism to open model Advent of trade blocs Deep Integration Recognition Deep Integration Recognition analyses the aspect that effective integration is a much broader aspect, surpassing the idea that reducing tariffs, quotas and barriers will provide effective solutions. Rather, it recognizes the concept that additional barriers tend to segment the markets. That impedes the free flow of goods and services, along with ideas and investments. Hence, it is now recognized that the current framework of traditional trade policies are not adequate enough to tackle these barriers. Such deep-integration was first implemented in the Single Market Program in the European Union. However, in the light of the modern context, that debate is being propounded into the clauses of different regional integration agreements arising out of increase in international trade. (EU). Closed regionalism to open model The change from a system of closed regionalism to a more open model had arisen out of the fact that the section of trading blocs that were created among the developing countries during the 1960s and 1970s