Her work as an alumna of the Indicorps Fellowship program and former President of the Dr. Martin Luther King Jr. Scholarship Association at Seton Hall University, positioned her to serve as a board member of Adelante Student Voices for undocumented youth and become a founding member of Malayalees for Social Justice (MSJ). During the Biden Harris presidential campaign, Sini served as a national speaker for the Malayalee diaspora under South Asians for Biden, Indians for Biden National Council. Sini is a recurring panelist on The Grapevine TV and contributes as a writer for Brown Girl Magazine and Her Agenda.