Answer Key For NDA 1 2020: NDA 1 and 2 exams will be conducted offline on September 6, a common exam for both NDA 1 and 2 aspirants, but the final UPSC results will be announced separately. Below given is the answer key of all 4 sets of paper 1 and paper 2 of NDA 1 exam that was held on September 6, 2020. You can also download your NDA Answer Key 2020 through the link given on our page. For more information about NDA Answer Key 2020, you can read our complete article. NDA is a golden chance for