Shillong was the Centre of erstwhile Assam State which reduced to paper sub-centre after Assam shifted the Centre to newly constructed building at Guwahati mid 1966.
- Environment Day 2012
- Annual General Meeting 2010
- Seminar on New Renewable Energy Sources 2010
- Thirty-first National Convention of Computer Engineers & National Seminar on "ICT Applications for Societal Benefit".
- Thirtieth National Convention of Electrical Engineers & National Seminar on “Development of Smart Grid in India”.