Kerala and Pondicherry have a higher number of females per 1000 males in comparison to Delhi and Haryana because:

• Kerala and Pondicherry have good health facilities.
• There is a lesser infant mortality rate.
• There are higher literacy rates due to that there is lesser female foeticide.
• In Delhi and Haryana, there is a migration of young males due to employment. This leads to a high number of males in comparison to females.
• Haryana has high female foeticide because of orthodox thinking of people for having a male child. This has led to a skewed sex ratio in Haryana.