She is also one of the founding board members of Sangama, a gender and sexual minority rights NGO in Bangalore along with Manohar Elavarthi.
[3] Chacko is one of the few feminist activists who is active fighting for the rights of gender and sexual minorities, and sex workers in India.
[4][5] She headed many NGOs, including Sangama, Aneka[6] and Solidarity Foundation and supported in nurturing and developing sexual minority and sex worker community based organisations and collectives for over 25 years.
[9][10] She is a researcher interested in macro economics, NGO management, social justice issues including gender and sexual minorities and has published articles in peer-reviewed journals.
[17] She received the Times Ascent Award as global diversity leader at the World HRD Congress, Mumbai 2017.