Much of Erode's student tech activity sits around Perundurai, where Kongu Engineering College runs its own events. 2, which paired a 24-hour hackathon on the UN Sustainable Development Goals with competitive coding, paper presentations and project showcases. Hackathons like this are a good match for anyone taking an online programming or cloud course from Erode.
You get a deadline, a team and a real problem, which tests what you know far better than practice exercises. Teams were capped at three, so it helps to find partners early. Bigger meetups are mostly in nearby Coimbatore, so it is worth following those too.
Independent community groups, listed for reference. They are not run by or affiliated with WebAsha.