Sarthak Sidhant, Class 12 student who flagged irregularities in CBSE's OSM portal tender for Class 12 board exams, has launched an open-source website to track government procurement. "Transparency needs to be accessible. From today, it is," Sidhant wrote, revealing that he scraped 1.66 crore government files for building the website. "This is the beginning, more things to come," he added.