Step 1: Understanding the Concept:
The question asks for the state with the highest population density, not the highest total population. Population density is defined as the number of people per unit of area (usually per square kilometer).
Step 2: Detailed Explanation:
Let's look at the population density data for the given states as per the 2011 Census of India:
Uttar Pradesh: Has the largest population in India, but its density is 829 persons per sq. km.
West Bengal: Has a population density of 1,028 persons per sq. km.
Kerala: Has a population density of 860 persons per sq. km.
Punjab: Has a population density of 551 persons per sq. km.
Comparing the values, West Bengal (1,028) has the highest population density among the given options. It is important to note that the state with the highest population density in India is Bihar (1,106), but it is not listed as an option.
Step 3: Final Answer:
Among the given choices, West Bengal has the highest density of population.