A common planning trap is to spend the first week collecting PDFs and the next few days deciding where to begin. Start with the NDA syllabus instead: it gives your preparation a clear boundary and helps you choose what to study next. A useful weekly plan is not packed; it is specific enough to follow.
Give each subject a place
Set aside regular study sessions for Mathematics and the General Ability Test, then divide each subject into syllabus topics. For example, a mathematics session might focus on a single concept and a short set of questions, while a GAT session could pair reading with targeted practice. The exact balance depends on your current strengths, so adjust it after you see how your work is going.
Plan for practice and review
A topic is not covered just because you have read its notes. Leave time in the week to solve questions without looking at the answers, then review the ones you missed or guessed. Keep a brief error log: write down the topic, the kind of mistake, and what you will do differently next time.
Keep the plan adjustable
At the end of the week, check what you completed and which topics still feel uncertain. Move unfinished work forward deliberately rather than doubling every study session to catch up. Free notes and practice material are most useful when they support a routine you can sustain, not when they become another pile to finish.