Complex sentence: The school is a full-fledged higher secondary school with two streams (general and vocational) in its higher secondary section and has been working to impart education and professional training for the students to develop human resources.
Split into simpler sentences: The school is a full-fledged higher secondary school with two streams (general and vocational) in its higher secondary section. It has been working to impart education and professional training for the students to develop human resources.