25: Velamma Episode

I need to confirm the structure of the series. I think Season 1 has 18 episodes, Season 2 has 7 episodes, Season 3 has 19 episodes, and Season 4 has 16 episodes. Wait, adding those up doesn't reach 25. Hmm, maybe I'm mixing up the numbers. Alternatively, maybe the user is referring to an older season, but that's not likely since 25 would be in later seasons.