​The level of urbanisation in India is measured in terms of ________ of urban population to total population.​

Correct option is D

The correct answer is (D) ​Percentage​.

The level of urbanization in India is measured as the percentage of urban population to the total population. 

Explanation:

• Urbanization is the process of developing rural areas and villages into towns with better living standards and amenities. 
• The level of urbanization in India has been increasing over time. 
• The growth rate of urbanization has slowed down in the last two decades. 

Examples:

• In 2011, the level of urbanization in India was 31.16%. 
• In 2020, the level of urbanization in India was 34.93%. 
• In 1960, only 18% of Indians lived in cities, while today around 34% do.