Speech or Direct & Indirect Speech is one of the trickiest topics in Grammar.
Not only must you have a good understanding of the Rules of Converting Direct and Indirect Speech, but you must also be aware of the Exceptions in Direct and Indirect Speech.
He said, “I saw the sun rising in the east.”
He said that he had seen the sun rising in the east.
He said, “Sun rises in the East.”
He said that Sun rises in the East.