RAG Demo for Beginners: Full Hands-On Tutorial in Tamil | Build Your Own RAG AI | Karthik's Show

In this video, we’ll build a Simple RAG (Retrieval-Augmented Generation) AI from scratch using Google Colab, FAISS, Sentence Transformers, and a lightweight Hugging Face LLM. All explained in Tamil! Perfect for absolute beginners, this demo shows you how to make an AI that can read your documents and answer questions from them like a mini ChatGPT. Link to GitHub repository: https://github.com/KarthiksShow/RAG 🔍 What You Will Learn ✔ What RAG is and why it’s powerful ✔ How to load and split documents ✔ How to convert text into embeddings ✔ How to store embeddings in FAISS ✔ How to retrieve relevant chunks ✔ How to generate answers using an LLM ✔ Full RAG pipeline coded step-by-step 🧪 Tools Used Google Colab langchain-community FAISS sentence-transformers HuggingFace transformers Qwen2.5-1.5B-Instruct model (free) 📁 Code Included in This Video All code used in the demo is beginner-friendly and can run on any laptop using Google Colab. 💡 Who Is This For? This video is perfect for: Beginners learning AI Students Developers starting with RAG Anyone who wants to build a custom Q&A system Other useful related videos: What is RAG: https://youtu.be/163HyouAVak What is Vector database: https://youtu.be/1fuCws-gPYo Types of RAG: https://youtu.be/JL9R_2pmKl4 MCP vs RAG: https://youtu.be/s0Npo3H5aqk RAG vs Finetuning: https://youtu.be/6euUlP3zaks Check 'Python Programming for Beginners' Tamil course at https://www.karthiksshow.com/courses/Python-Programming-for-Beginners-638dbf0ce4b09464540754a9. Check 'Python Programming for Machine Learning' Tamil course at https://www.karthiksshow.com/courses/Python-Programming-for-Machine-Learning-649d29ace4b0834a0c48cee3 Check "Python Programming Package" at https://www.karthiksshow.com/courses/Python-Programming-Package-64f2c028e4b039bbd3fe6bf5 More videos you can check from our channel: Simple Python Project: https://youtu.be/gQNpIbG-F0U Create a simple ML Model using Decision Tree algorithm: https://youtu.be/iR1KaYiUhvY C