Largest BST in Binary Tree | GFG Medium Problem in Python | Binary Tree DSA Interview Question Hindi

📌 Problem: You're given a binary tree. Your task is to find the size of the largest subtree which is also a Binary Search Tree (BST). This GFG problem is commonly asked in coding interviews. 🔍 Topic: Binary Tree + BST Check 🧠 Difficulty Level: Medium 👨‍💻 Language: Python 📅 Random DSA Practice | Solved on: 16th July 2025 In this video, I have explained the **"Largest BST in Binary Tree"** problem from GeeksforGeeks using **Python** in **Hindi**. You will learn: ✅ Post order traversal approach ✅ How to validate BST in a binary tree ✅ Maintaining subtree size, min, max, and BST status ✅ Handling edge cases (null, leaf nodes, etc.) 🎯 This problem is commonly asked in interviews by: TCS, Infosys, Accenture, Wipro, Cognizant, Capgemini, and product-based companies too. 🖇️ Problem Link: https://www.geeksforgeeks.org/problems/largest-bst/1 👇 Do LIKE, COMMENT, and SUBSCRIBE to support this Python DSA series! #PythonDSA #BinaryTree #GFGPython #LargestBST #DSAinHindi #CodingInterview #PythonBinaryTree #GeeksforGeeks #MCAstudent #TechWithNishant #DSASeries