Khwarizmi Science Society (KSS), founded by Dr. Saadat Anwar Siddiqi, a life-long teacher of physics and materials and science popularizer, is one of Pakistan‟s most active and oldest grassroots science awareness movements. The Lahore Science Mela (Festival) Series is its flagship activity that was initiated in 2017 in order to foster a scientific culture in the public of Lahore. The idea behind the science melas is to impact the public‟s outlook towards science, celebrate the idea that science belongs to everyone, catapult students to a new pedestal where they could think beyond science textbooks and classrooms, create a cultural melting pot of intellectual discussion and scientific inquiry by providing a meeting place for the minds, and to inspire the next generation of scientists and technologists in Pakistan. The word mela itself is of Farsi origin and means the mingling of ideas, peoples, and activities. In the Lahore Science Mela 2019, KSS presented its thousands of visitors with an opportunity to experience the LargeHadron Collider Tunnel (the largest and most expensive physics experiment) and virtually tour CERN (the world's largest physics laboratory). In 2009, KSS celebrated the International Year of Astronomy through its series of Falkiati Melas (Astronomy Fests). In the Falkiati Melas, KSS took powerful telescopes to even the most remote local schools of Pakistan, allowing everyone toobserve the celestial world completely free of cost and stirring within the common people a deep fascination regarding astronomy.