Data Structures Using: Binary Search Tree , STL: Unordered Maps (Internally uses hash tables for implementation),Queue,Vectors, Linked List , pairs , strings. The “Stock Management System” project serves the purpose of having an automated system which has been developed to automate the stock processes with the intent to ease the operation and reduce manual effort resulting in better management of stock. Each product will be recognized by its product id, product name, quantity available and the category they belong to. Stock Management refers to the process of supervising and controlling the stock items of a company. Typically, Stock Management Systems are used by firms that either sell a product or manufacture a product for the purpose of accounting all the tangible goods that allow for a sale of a finished product, or parts for making a product. This stock management system consists of Product Management to add, list and update the stock based on the sale details, Purchase Management, Sales Management to generate receipts for sales and User management to keep records of the customers.