Need help with TU Hamburg application!!

So I'm a student from India, and i plan on applying to the winter sem for Msc Data Science program at TU Hamburg. This is what is written on the official website. So does that mean i should apply between Dec 1- Feb 1? I'm going through a consultancy service and they said noo this deadline is for summer semester. But i dont wanna waste my chnaces. What should i do?

https://preview.redd.it/z04xf3lgqi4g1.png?width=1062&format=png&auto=webp&s=b8d43f9c94d69303d74f1ecb7b0cd0d32fdff604