As he began preparing for the exam, Rahul realized that he needed a comprehensive resource to help him master the vast syllabus. His friends and seniors recommended "Problems Plus in IIT Mathematics" by A. Das Gupta.

However, Rahul's conscience continued to bother him. He knew that using a pirated copy of the book wasn't right, and he felt guilty for not supporting the author and publisher.

Rahul was excited to get his hands on the book, but he was also worried about the cost. He had heard that the book was not cheap, and he wasn't sure if he could afford it. One day, while browsing online, he stumbled upon a website that offered the book in PDF format for free.

As he downloaded the PDF, Rahul felt a mix of emotions. On one hand, he was relieved to have access to the book; on the other hand, he worried about the authenticity of the content and the potential consequences of using a pirated copy.

To his surprise, the publisher responded promptly and offered him a discounted version of the book. They also provided him with a link to an official online platform where he could access the book's content, including additional resources and practice problems.

Rahul was relieved and grateful for the publisher's understanding. He purchased the book and continued to study for his IIT exams, this time using a legitimate copy.

As Rahul progressed through the book, he started to feel more confident about his abilities. He was able to solve complex problems with ease, and his understanding of mathematical concepts improved significantly.