LangChain Basics in Tamil | LLM, Memory, Prompt Templates & Chaining

Watch Agentic AI Series Here:    • Agentic AI using Google ADK and MCP   Find the Python notebook here - https://github.com/sanjayssnit/langch... Learn Python Data structures for AI Here:    • Python Data Structures in Tamil - Part 1   Learn LangChain fundamentals step by step in Tamil. In this video, I explain how to make a simple LLM call, manage memory, use prompt templates, chain prompts together, and handle session management in LangChain. 00:00 Intro 00:57 Free LLM API Key 01:24 Setup API Key in Colab 01:49 Langchain Setup 02:22 LLM Call Using Langchain 04:17 AI Message & Human Message 06:42 Langchain Memory Management 07:56 What is Chaining 08:34 How Chaining Works 11:06 Session Management 14:37 How User Session Works 19:32 What Next? This is a beginner-friendly tutorial designed for students and professionals who want to build LLM applications with practical understanding. By the end of the video, you’ll know how to create interactive, memory-based AI apps using LangChain. 👉 Covered in this video: Simple LLM call using LangChain Memory management in conversations Prompt templates for dynamic responses Chaining prompts together Session management for multiple users 🎯 Perfect for Tamil learners interested in Generative AI, LangChain, and AI application development.