Complex sentence: This school was named after Pandit Deen Dayal Upadhyaya (1916--1968), who was India General Secretary of the Bharatiya Jana Sangha party in (1951) and was elected its president in 1967.
Split into simpler sentences: This school was named after Pt. Deen Dayal Upadhyaya (1916--1968). Pt Upadhyaya was India General Secretary of Bhartiya Janasangha (1951) and was elected president for the same party in 1967.