Chandigarh Rayaan Grewal, who studying in 11th class used technology for a noble cause, he created model for face shields and printed with the help of 3D printer. So far he has distributed 200 face shields to corona warriors. Rayaan is learning coding since the 8th grade. "I want to contribute to society by using technology as a medium to help the frontline workers in these unprecedented times of COVID-19. I had previous knowledge in CAD (Computer-aided design)," Grewal told ANI. By the end of December, he is hoping to create over 500 face shields.