YouTube is the primary source. You can download videos legally via YouTube Premium (offline feature) or using third-party apps (use at your discretion, may violate terms). Many channels also provide course download links in their descriptions.
To maximize these free resources, avoid "resource hoarding" and stay disciplined: upsc preparation free video download
The Golden Rule: Do not download paid courses for free. Instead, leverage the massive ecosystem of legitimately free content provided by the government and YouTube educators. Cons: These sites are often riddled with ads,
: Offers specific preparation apps for Prelims and specialized exams like EPFO, featuring recorded video sessions. Essential Free Downloadable Resources The Golden Rule: Do not download paid courses for free