Step 1: Full Form: NALSA stands for National Legal Services Authority. It is a statutory body constituted under the Legal Services Authorities Act, 1987.
Step 2: Purpose: NALSA provides free legal services to eligible persons and organizes Lok Adalats for amicable dispute resolution.
Step 3: Functions: It aims to ensure that opportunities for securing justice are not denied to any citizen by reason of economic or other disabilities.
Step 4: Incorrect Options: Other options incorrectly expand the acronym or suggest unrelated administrative roles.
Hence, the correct full form is National Legal Services Authority.