According to Census 2011, the union territory with the least literacy rate is Dadra and Nagar Haveli. Let's explore the reasons behind this.

Factors contributing to low literacy rate in Dadra and Nagar Haveli:

1. Socio-economic factors:
- Dadra and Nagar Haveli is a small union territory located in western India. It has a predominantly tribal population with a significant number of indigenous communities.
- The area is characterized by high poverty rates, limited access to resources, and lack of proper infrastructure. These socio-economic factors can significantly impact the literacy rate.

2. Language barriers:
- The tribal communities in Dadra and Nagar Haveli have their own languages and dialects. The lack of education in the local languages and limited availability of schools that teach in these languages can hinder literacy.

3. Limited educational infrastructure:
- Dadra and Nagar Haveli has a shortage of educational institutions, especially in remote areas. This makes it difficult for children to access quality education.
- The lack of proper school buildings, trained teachers, and educational resources further contribute to the low literacy rate.

4. Cultural factors:
- Some indigenous communities in Dadra and Nagar Haveli have cultural practices that may not prioritize formal education. Traditional occupations and cultural norms can influence the importance given to education within these communities.

Steps to improve the literacy rate in Dadra and Nagar Haveli:

1. Enhancing educational infrastructure:
- The government should focus on building more schools and improving existing ones. This includes providing adequate facilities, classrooms, and resources for effective learning.
- Special attention should be given to developing schools in remote and tribal areas to ensure equal access to education.

2. Promoting local languages:
- To overcome language barriers, efforts should be made to incorporate local languages and dialects into the curriculum.
- Bilingual education programs can help bridge the gap between the students' native languages and the official language of instruction.

3. Awareness campaigns:
- Community-level awareness campaigns should be conducted to emphasize the importance of education and to address cultural factors that may hinder education.
- These campaigns can help change mindsets and encourage parents to send their children to school.

4. Skill development programs:
- Along with basic literacy skills, vocational training and skill development programs should be introduced to enhance employability and economic opportunities for the youth.

By addressing these factors and taking proactive measures, it is possible to improve the literacy rate in Dadra and Nagar Haveli and provide better educational opportunities for its residents.

Literacy rate of India in 2011 is 74.04%. The Male literacy rate is 82.14% and Female literacy rate is 65.46% according to Census 2011.