To answer this question, you need to have knowledge about geographical locations in India.
Option A) The Southernmost point of the great Nicobar Island - This option is correct. Indira Point is indeed the southernmost point of the Great Nicobar Island, which is located in the Andaman and Nicobar Islands in India.
Option B) A point in Kanya Kumari - This option is incorrect. Kanya Kumari, also known as Cape Comorin, is the southernmost tip of mainland India.
Option C) The Highest peak in the Vindhyas - This option is incorrect. The highest peak in the Vindhyas is Amarkantak, which is located in Madhya Pradesh.
Option D) Memorial of Mrs. Gandhi - This option is incorrect. Indira Point is not a memorial of Mrs. Gandhi, but rather a geographical location.
The correct answer is A) The Southernmost point of the great Nicobar Island. This option is correct because Indira Point is indeed the southernmost point of the Great Nicobar Island.