Tathva National Institute Of Technology Calicut | 665 followers on LinkedIn. Tathva the techno-management fest of NIT Calicut over the years have found itself a place in every engineering student. | Tathva, the techno-management fest of NIT Calicut, over the years have found itself a place in every engineering student's calender. One of the largest platforms in South India for technical ingenuity and managerial prowess, Tathva offers a plethora of workshops, events and other activities that 'Inspire Innovation'. Tathva brings to you 50+ engineering as well as managerial events which help the budding talents of the nation to showcase their talents.