NDA exam questions are typically asked in both English and Hindi. This is done to accommodate candidates who are more comfortable in either language. You will have the option to choose the language in which you want to attempt the paper.

However, it's important to note that the overall structure, difficulty level, and content of the paper will remain the same, regardless of the language you choose. The only difference will be the medium of instruction.

Therefore, if you are preparing for the NDA exam, it is advisable to practice solving questions in both English and Hindi to be well-prepared.