Complex sentence: Zaffar observed the discrimination of certain castes by the authorities on this he could not remain silent, he left the government teaching job and started politics under the leadership of Zulfiqar Ali Bhutto as he was inspired from his socialistic approach.
Split into simpler sentences: Zaffar observed the discrimination of certain castes by the authorities he could not remain silent on this. He left the government teaching job and started politics under the leadership of Zulfiqar Ali Bhutto as he was inspired from his socialistic approach.