Solution:NITI Aayog (national Institution for Transforming India) is often described as a staff agency because its primary role is to assist and advise the government in policy making and planning rather than implementing programs directly.
• A staff agency provides expert analysis, guidance and recommendations to the government or higher authorities, without being involved in the execution of decisions.
• NITI Aayog is the policy think tank of the Government of India. It was established on January 1, 2015 replacing the Planning Commission, to provide a more decentralized and inclusive approach to governance and development.