Ganesh Jha on Instagram: "Here is what you’ll learn: RAG Fundamentals: context window limits, hallucinations; retrieval (find relevant chunks) + generation (LLM answers). ​ Prompt Engineering Base: PICF-ATD framework (Persona, Identity, Context, Format, Audience, Tone, Data) for all RAG/agentic pipelines. ​ Data Ingestion/Preprocessing: PyMuPDF for PDFs; Tesseract OCR; Docling—handles real parsing challenges skipped in short tutorials. ​ Chunking Strategies (Theory + Code): Fixed, semantic, stru