Statement 1 is Incorrect: DRDAs are registered societies under the Societies Registration Act and function as distinct administrative bodies; they do not act as Panchayati Raj Institutions (PRIs), although they work in coordination with them.

Statement 2 is Incorrect: The mandate of DRDAs is the planning, implementation, and monitoring of anti-poverty programmes; they are not tasked with conducting scientific research or studies into the causes of poverty and malnutrition.

Statement 3 is Correct: One of the primary functions of DRDAs is to secure inter-sectoral and inter-departmental coordination to ensure the effective delivery of various rural development schemes.

Statement 4 is Correct: DRDAs are responsible for overseeing the flow of funds and ensuring that the financial resources intended for anti-poverty programmes are utilized effectively and transparently.