According to the provisional figures of 2011 Census, the lowest sex ratio in India is in

Chandigarh
Daman and Diu
Dadra and Nagar Haveli
Delhi

The correct answer is (d) Delhi.

The sex ratio in Delhi is 868 females per 1000 males. This is the lowest sex ratio in India, and it has been declining in recent years. There are a number of factors that contribute to this low sex ratio, including female infanticide, sex-selective abortion, and the preference for sons over daughters.

Female infanticide is the practice of killing female infants at birth or shortly thereafter. It is a common practice in some parts of India, and it is estimated that millions of female infants have been killed in India in recent years. Sex-selective abortion is the practice of aborting a fetus based on its sex. It is also a common practice in India, and it is estimated that millions of female fetuses have been aborted in India in recent years. The preference for sons over daughters is a cultural phenomenon that is deeply rooted in Indian society. Sons are seen as being more valuable than daughters, and they are often given more opportunities and privileges. This preference for sons can lead to discrimination against girls and women, and it can also contribute to the low sex ratio in India.

The low sex ratio in India is a serious problem that has a number of negative consequences. It can lead to a shortage of women in the workforce, and it can also lead to social problems such as violence against women and trafficking. It is important to address the factors that contribute to the low sex ratio in India, and to take steps to improve the status of women in India.