What is the tax structure for Exhibition cum sale

Detailed points
1. Exhibition takes place at different locations for a period of 30 - 60 days at different locations within the state karnataka.
2. 40 - 50 Small traders take part in the exhibition to sell different types of goods.
3. Income in form of rent received from such small traders.
4. Major part of expense in form of rent to be paid to landlord of the location.

Please guide.