The Centre can undertake the following measures to design a Human Development Index for 28 lakh Particularly Vulnerable Tribal Groups:

• Identifying key indicators: The Centre can identify key indicators for measuring human development, such as health, education, income, and access to basic services.
• Consultations with experts: Consultations with experts on tribal issues can help identify specific indicators for measuring human development for particularly vulnerable tribal groups.
• Data collection: The Centre can collect data on these identified indicators from relevant sources, such as census data, health and education records, and economic surveys.
• Data analysis: After data collection, the Centre can analyze the data to identify the gap between the current status and the desired status in the identified indicators for human development.
• Developing a composite index: Based on the data analysis, the Centre can develop a composite index for measuring human development for particularly vulnerable tribal groups.
• Implementing policies: The Centre can use this index to design policies and programs for addressing the developmental gaps and promoting the overall well-being of particularly vulnerable tribal groups.
• Regular review: Regular review of the index can help measure the effectiveness of policies and programs designed for the development of particularly vulnerable tribal groups.

By undertaking these measures, the Centre can design a comprehensive Human Development Index for Particularly Vulnerable Tribal Groups, which can help guide policy and ensure their well-being.