Munna and Bunty attempted to create an ATM system in C# without using classes, resulting in chaotic and error-prone code.
Chhotu pointed out the inefficiency of their approach and showcased a more organized solution using Object-Oriented Programming (OOP) principles.
Chhotu's implementation emphasized the importance of OOP in reducing code repetition and complexity, leading to a more efficient and maintainable system.
The experience highlighted the significance of starting with procedural programming to understand the value of OOP for newcomers in coding.