Explanation:

- Option 1: Iran

- India and Iran are not direct neighbours. They do not share a land border. However, they are relatively close, separated by Pakistan in between.

- Option 2: Maldives

- India and Maldives do not share a land border. Maldives is an island nation located to the south of India across the sea. It is nearby but not a neighbouring country in the standard geographical sense.

- Option 3: Russia

- Russia is very far from India and does not share any border.

- Option 4: Australia

- Australia is a distant continent and does not share a boundary or immediate proximity with India.

The correct answer is: None of the above options represent a country sharing a land border with India. But, among these, Iran and Maldives are relatively close to India, yet only countries like Pakistan, China, Nepal, Bhutan, Bangladesh, Myanmar, and Sri Lanka are considered neighbours of India (Sri Lanka and Maldives are maritime neighbours).