N. Revanth Reddy created a portfolio website using HTML, CSS, JavaScript, and Bootstrap. They began the project after completing their second year of university to learn something new through an internship. Over four weeks, they learned the basics and advanced concepts of each technology. They started by learning HTML for page structure, then CSS for styling, JavaScript for interactivity, and Bootstrap for responsive design. They applied their skills by building a table with various elements as an assignment to demonstrate their progress.