Complex sentence: Culturally, the school is a hub of activities; it has active Computer, Drama, Quizzing, Yoga, Judo, Music (instrumental as well as vocal) and Art Groups, apart from others.
Split into simpler sentences: Culturally, the school is a hub of activities. The School has active Computer, Drama, Quizzing, Yoga, Judo, Music (instrumental as well as vocal) and Art Groups apart from others.