Read the following passage and answer the questions.
Passage
Trade fairs are among the most memorable events that take place periodically with the purpose of promoting sales, launching new products, bringing together manufacturers of a particular line of products and educating the public. They are held at all levels-international national, state and district. The most prominent among them are the India International Trade Fair. World Book Fair. Information Technology fair. Electronic Trade and Technology Fair. Textile Fair. Auto Expo. state level book fairs. district level exhibitions etc. India Trade Promotion Organisation (ITPO), which was incorporated in 1992 by the merger of Trade Development Authority (TDA) with the Trade Fair Authority of India (TFAI), has been playing a commendable role in this respect It can be said without a doubt that sales promotion is the most important purpose of these fairs. Bringing together the largest possible number of manufacturers, suppliers, existing and potential buyers under the same roof helps to promote the products in an effective way. All these people come together on a single platform for a fixed period of time. This offers a unique opportunity to manufacturers and suppliers to display their best products and services and the buyers get a chance to see a wide range of products and services.
Conferences, seminars, live product demonstrations and presentations are regular features of these fairs and exhibitions. Besides these, colourful cultural programmes are also important features of such fairs. These fails give a good opportunity to the artists to showcase their skills and talent at such specially organized programmes.