Step1: Visit courses.pi2.in through Chrome browser on your PC/laptop
Not all courses can be accessible through PC
Step2: Click on Login to access the relevant lectures on PC/laptop
No, it is like Netflix or Amazon Prime. On laptop/PC you can only watch them through the browser (no download and watch option is there). But, you can download and watch them offline on mobile (PiSquare app) and watch them later without internet just like Netflix mobile app.