Why was Mahatma Gandhi disappointed by the partition of India and Pakistan?

It was one of the greatest disappointments of Mahatma Gandhi’s life that Indian freedom was realized without Indian unity.12

Gandhi had long labored to achieve Hindu-Muslim unity, viewing it as a fundamental goal of his national program. However, during the final constitutional negotiations in 1946–1947, the rise of Muslim separatism and the outbreak of violent communal riots created an atmosphere of suspicion and hatred that undermined his appeals for reason, trust, and tolerance.3412

Ultimately, the partition of the subcontinent was accepted against his advice. Gandhi viewed the division as a failure to achieve the unified, harmonious nation he had envisioned, and he spent his final months attempting to heal the scars of the communal conflict through fasting and touring riot-torn areas.12