Complex sentence: After an exhaustive and divisive debate, a compromise was reached to adopt Hindi as the official language of India with English continuing as an associate official language for a period of fifteen years, after which Hindi would become the sole official language.
Split into simpler sentences: After an exhaustive and divisive debate, a compromise was reached to adopt Hindi as the official language of India with English continuing to remain as an associate official language for fifteen years. At the end of fifteen years, Hindi would become the sole official language.