What is the correct way to connect India's (3.28) million sq km area information with (15200) km boundary information?

Correct answer: Area shows total land extent and land boundary shows outer land contact

Area and land boundary are two different measurements of a country. Area tells us how much land a country covers, usually in square kilometres. India’s area is about 3.28 million square kilometres. Land boundary tells us the length of the country’s borders where it meets neighbouring countries, and India’s land boundary is commonly given as about 15,200 kilometres. Therefore, option A correctly separates their meanings.

The two figures cannot both represent coastline, world percentage or rank. A square-kilometre value measures surface extent, while a kilometre value measures length. The 15,200-kilometre figure refers to India’s land frontier, not its sea coast; the coastline is measured separately. Thus the correct reasoning is that 3.28 million square kilometres describes total land area, whereas 15,200 kilometres describes the outer land contact with neighbouring countries. Option A makes exactly this distinction, so it follows from the units and geographical definitions.