To help you verify if you have found the real old episodes, here are the gold standards from the Nick India era (Season 1 & 2). Search for these titles in Hindi:
Finding the original Nick dub can be tricky because the rights shifted to other channels like Sony YAY! , which uses a different dubbing team. However, you can still find updated playlists and archives online: oggy and the cockroaches in hindi old episodes nick updated