The Human Development Index (HDI) can benefit the 28 lakh Particularly Vulnerable Tribal Groups (PVTGs) population in India in the following ways:

• The HDI measures the level of human development based on three important factors - health, education, and standard of living, which can help identify the strengths and weaknesses of the PVTGs in these areas.
• By using the data gathered through the HDI assessment, the government can design policies and programs that are specifically targeted towards improving the human development indicators for PVTGs.
• The HDI can help track the progress of PVTGs over time, by providing updated data for analysis to measure the impact and effectiveness of various government interventions in improving their overall development.
• The design of the HDI measures takes into consideration the unique cultural and socio-economic factors that influence the overall well-being of the PVTGs, which can help create a more inclusive and fair assessment of their development levels.
• The HDI can help identify gaps in the development indicators for PVTGs, which can serve as an important tool for advocacy and lobbying for their rights and entitlements.

In conclusion, the use of the Human Development Index can serve as an important tool to help improve the overall development indicators for PVTGs in India, by providing updated data for evidence-based policymaking and interventions.