Mr.Shiv raj
Your wife has her lagna in Virgo (an earthy sign). The 1st cusp sub lord is Saturn who is in the star of Mars in a watery sign Scorpio. Saturn is in the sub of Moon who also signifies Saturn in Capricorn. Virgo is an earthy sign which gives the native practical nature. But Capricorn also is an earthy sign. As Moon is in a watery sign Scorpio she is very intelligent but she will have the ideas of delays and postponements. Capricorn gives the idea to lead others. Saturn is in aspect to Sun and Jupiter. So the nature of your wife is she will be more practical, intelligent and have some head strong without diplomacy. She seems to be some what egoistic as she feels that she is correct and nobody is not paying attention to her. She is more attached to her father=in=law than her mother-in-law.

It seems that your mother likes discipline, but will not satisfy easily with the acts of anybody. She likes her own discipline. She is a peace loving woman. I hope the conflict is between them, because she will not satisfy easily. She dislikes the attitude of your wife.

You are more attached to your mother and will not pay attention to your wife. You always worry about things more than you have to. So in her inner heart, it may be for change of house to live separately. She might be earning. She is also a peace loving woman.

You understand her problem and settle to live happily.
Good Luck
JVS Rao (KP system follower)

In your chart, the 4th lord is Venus and the 4th cuspal lord is Rahu. The sthira karaka for mother is Moon who is also your Lagna lord. All the 3 planets are in your 8th house. The owner of the 8th house is Saturn and it is your cuspal Lagna lord also. Saturn also aspects the trio representing your mother.

All the 3 planets are in the nakshatra of Rahu. The rasi itself is an airy sign representing a dreamy, full of imagination and philosophical personality. Maybe a little different from normal persons. (By the way, the combination of Sun and Rahu gives you a pitru dosha while Moon and Rahu constitute a Grahana dosha. Your own mind can carry a bit of irrationality. Your anger may only add to the confusion.) Further the placement of the trio in Saturn’s house and aspect by Saturn makes your mother prefer the traditional way of life.

The 7th lord of your Navamsa representing your wife is Jupiter. Jupiter also is the 2nd and 11th lord from your 8th house of the rasi chart.

The lord of the 10th house of the Navamsa chart of your wife (representing your mother) is Venus. And Venus is in the 12th house in her Rasi chart. From the chart, she appears to be a practical lady with probably a secretive mind and desiring the modern amenities since she is also running the dasa of Venus activating Rahu in the 4th house of comforts.
This clash of mindsets could be one reason for the non adjustment.