Detailed Solution:
The correct answer is “Punjab”.
The provincial elections in British India were held in the winter of 1936–37 as mandated by the Government of India Act 1935. These elections took place across eleven provinces.
The Indian National Congress formed governments in seven provinces: Bombay, Madras, Central Provinces, United Provinces, Bihar, Orissa, and the North-West Frontier Province. However, the Congress did not get a majority in Punjab, Sindh, Assam, and Bengal.
The All-India Muslim League did not secure control in any province, reflecting its limited political reach at that time.