Sachin was a:

Sachin Tendulkar was a Princely state.

A princely state was a state in India that was ruled by a prince or a hereditary ruler. The princely states were not part of British India, but they were under British suzerainty. This meant that the British government had control over the foreign affairs and defense of the princely states, but the rulers of the princely states had control over their internal affairs.

The princely states were abolished in 1947, when India gained independence from British rule. The princely states were then merged into the Indian Union, and the rulers of the princely states were given titles and pensions.

Here is a brief explanation of each option:

• Zamindari: A zamindari was a type of land tenure system in India in which the land was owned by a zamindar, or landlord, and was leased to tenants. The zamindars were responsible for collecting taxes from the tenants and for maintaining law and order in their areas.
• British cantonment: A British cantonment was a military base in India that was used by the British Army. The cantonments were usually located in large cities, and they were home to British soldiers, their families, and other British civilians.
• Portuguese colony: A Portuguese colony was a territory that was under the control of Portugal. The Portuguese colonies were located in Africa, Asia, and South America. The Portuguese colonies were ruled by the Portuguese government, and the people in the colonies were subject to Portuguese law.