SLIIT Tamil community proudly hosts the Thai Pongal celebration, honoring the traditional harvest festival with colour, culture, and joy. The event embraces Sri Lanka religious and cultural diversity, creating a space for unity, gratitude, and shared celebration among students of all backgrounds.

SLIIT Carols is an annual Christmas celebration that brings together students and staff for an evening of festive music and joy. The event features student performances, choirs, and holiday spirit, fostering unity and warmth across the university community.

The annual Dharma Deshana program, organized by the Business School Students Community, is a meaningful spiritual initiative that promotes mindfulness, ethical living, and inner reflection. Held within the university premises, the program brings together students, academic staff, and well-wishers to engage in an atmosphere of peace and contemplation.