"The theme of this year's IITF is 'Digital India'. All pavilions including state and central ministries will project this theme in their stalls," India Trade Promotion Organisation (ITPO) General Manager Guna Sekaran told PTI.
He said 150 companies of from about 24 countries would showcase their products.
Tickets for the 14-day fair will be available online as well as at Delhi metro stations.
South Korea is the partner country, while Belarus is the focus country this time.
First five days of IITF will be for business people.
There will be free entry for senior citizens and differently-abled persons.