Which of the following statements is correct as per Census 2011?
1. The population density of Bharatpur district is less than 500 persons per sq.km.
2. The population density of Ajmer district is less than 300 persons per sq.km.
3. The population density of Bharatpur district is more than 500 persons per sq.km.
4. The population density of Jaipur district is less than 500 persons per sq.km.