The employment contract in Indian labour history

What is the employment contract? When was it introduced in India? What is the role of Indian labour history within the field of labour history and historical research more generally? GHIL Senior Fellow and Head of the India Research Programme Indra Sengupta and PR Officer Kim König put these questions to Prabhu Mohapatra (University of Delhi) and talk to him about his research on the genealogy of labour regulation in India and the career of the employment contract in particular.