India can be divided into six natural regions based on various factors such as topography, climate, vegetation, and soil type. The six natural regions of India are:

1. The Northern Mountains:
This region comprises the Himalayan ranges and their foothills. It is characterized by high altitude, cold climate, heavy rainfall, and snowfall. The vegetation in this region includes coniferous forests, alpine meadows, and shrubs.

2. The North Indian Plain:
This region encompasses the Indo-Gangetic Plain and is characterized by fertile alluvial soil, flat terrain, and a hot and humid climate. The vegetation in this region includes tropical deciduous forests, grasslands, and swamps.

3. The Peninsular Plateau:
This region comprises the Deccan Plateau and is characterized by rugged topography, black soil, and a semi-arid climate. The vegetation in this region includes dry deciduous forests, savannahs, and thorny shrubs.

4. The Coastal Plains:
This region comprises the eastern and western coastal plains and is characterized by a narrow strip of land between the sea and the mountains. The vegetation in this region includes mangroves, coconut groves, and tropical rainforests.

5. The Islands:
This region comprises the Andaman and Nicobar Islands and Lakshadweep Islands. It is characterized by tropical climate, coral reefs, and dense forests. The vegetation in this region includes tropical rainforests and mangroves.

6. The Desert:
This region comprises the Thar Desert and is characterized by arid climate, sand dunes, and thorny vegetation. The vegetation in this region includes cacti, thorny shrubs, and a few trees.

In conclusion, India can be divided into six natural regions based on various factors such as topography, climate, vegetation, and soil type. Each region has its unique characteristics, which make them distinct from each other.