Renu
You do not know astrology. You go through the computer softwares and mislead by them, you ask these questions. I have explained about the house and rasis in the mail of Radhe Shyam.
When we give the answers, we check once and twice. You do not know the difference of Rasis and houses. I enclose the chart for your reference.
Sun and Mercury are in 10th rasi and behind the 10th house. So they give the results of 9th house only. Likewise Moon is behind 9th house in 9th rasi. So Moon give the results of 8th house not 9th house.
I advise you to read astrology and question any astrologer.
Good Luck
JVS Rao (KP follower)