Mains is an event based competition. It is conducted during "Techniche", the Techno-Management Festival of IIT Guwahati, held during the first week of September. The selected teams of the same squad compete against each other in various events. The events are designed to test the creativity and imagination of the participants. There is no prerequisite knowledge requirement for these events. Moreover, any extra knowledge required is taught to the students by us. The winners of Technothlon are crowned on the basis of their performance in these events.