"Per day, we are expecting over a lakh people and about 18-20 lakh during the full 14 days. We have all the arrangements in place," India Trade Promotion Organisation (ITPO) CMD L C Goyal told PTI.
President Pranab Mukherjee will inaugurate the IITF 2015, in which about 7,000 firms from India and abroad are expected to participate.
Goyal said the fair tickets will be available at all the Delhi Metro stations.
Business visitors can buy the tickets online, he said, adding that from next year, "we will sell all the tickets online for both public and business visitors".
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Besides domestic companies, firms from countries, including Afghanistan, China, Germany, Hong Kong, Indonesia, Iran, Pakistan, Russia, South Africa, South Korea and the UAE, would showcase their products in the fair.
There will be free entry for senior citizens and the differently-abled on November 19-27.
While Afghanistan is the 'Partner Country', Bangladesh is the 'Focus Country' for the event.