A community leader, author of several books, advocate of Adivasi Rights and former teacher. He is the founder of People’s Action for Development (PAD) and many other social organisations including Adivasi Sahitya Sabha, Assam. Topno is the publisher of a renowned periodical ‘Adivasi Awaz’. He also established St. Don Bosco School and Adivasiya School to promote education in mother tongue the Adivasi community. He also wrote several articles and book chapters on social and environment related issues.