A central committee member of the Communist Party of India (Marxist), he has authored a number of articles on economics, planning and politics, has published in leading regional, national and international periodicals, presented lectures and papers in National and International Conferences and seminars.

[1] He was LDF Candidate in Pathanamthitta Lok Sabha Constituency at 2024 general election.

He has held posts in the SFI at college, district and state level.

[1] Isaac was a professor at the Centre for Development Studies, Thiruvananthapuram and has published a number of articles and books.

[4] Isaac is divorced from his wife Nata Duvvury[5] who is currently a senior lecturer at University of Galway.