| Mistake | Solution | | --- | --- | | Writing English labels on Hindi diagrams | Use Hindi labels only (e.g., "भ्रूणकोश" instead of "Embryo sac") | | No index or page numbers | Always maintain an index | | Messy diagrams | Use pencil, light shading, and scale | | Copying from irrelevant sources | Follow NCERT Lab Manual only | | Forgetting the observation table | Always include a data table |