To determine the smallest neighbouring country of India area-wise, compare the sizes of the nations listed in the options.
The approximate areas of the neighbouring countries provided in the options are:
Comparing these areas, Bhutan (approximately $38,394 \text{ km}^2$) is smaller than Nepal ($147,181 \text{ km}^2$) and Sri Lanka ($65,610 \text{ km}^2$).
Bhutan is the smallest neighbouring country area-wise among the given options.
Which of the following countries has the highest Hindu population after India?
Which of the following does NOT belong to the category of Porifera?