The correct answer for the total area of India is 3,287,590 sq. km (option 4). This means that the entire land area of India is approximately 3,287,590 square kilometers. It is important to note that the total area of a country includes both land and water.

Option 1 (8,511,965 sq. km) is incorrect as this is the total area of Canada, not India.

Option 2 (3,897,950 sq. km) is also incorrect as it does not match the correct answer.

Option 3 (5,926,780 sq. km) is incorrect as well, as it is not the same as the total area of India.

Therefore, the provided correct answer is valid, and there is no discrepancy.