As per the Census 2011, the population density of Haryana is (in per square k.m.):

Question

Accepted Answer

Option 2, which states that the population density of Haryana as per the Census 2011 is 573 per square kilometer, is the correct answer. Here's a detailed explanation supporting this:

1. **Justification for Option 2:**
   - According to the Census 2011 data, Haryana's population density was recorded at 573 people per square kilometer. This figure is derived from the total population of the state divided by its geographical area. The census data is a reliable source as it is conducted by the Government of India, ensuring accuracy and authenticity in the demographic statistics.

2. **Explanation for Incorrectness of Other Options:**
   - **Option 1 (478):** This figure does not match the official Census 2011 data for Haryana. While it might represent the population density of another region or state, it is not applicable to Haryana.
   - **Option 3 (385):** This number is significantly lower than the recorded population density of Haryana in 2011. It might be relevant to a less densely populated state or region, but not to Haryana.
   - **Option 4 (325):** This is also incorrect as it is much lower than the actual density reported for Haryana. Such a figure might be more typical of a rural or less populated area, but it does not reflect the demographic characteristics of Haryana as per the 2011 census.

In conclusion, the Census 2011 data clearly supports Option 2 as the correct answer, with Haryana having a population density of 573 people per square kilometer. This explanation aligns with the official statistics and provides a logical basis for why the other options are incorrect.