Puri ji,
the best would be to make them separate them so that they don’t come face to face till they do not change their behavior. Your younger son must be having some issues due to which his behavior is like this with his bhabhi. There was a time when Bhabhi was like Maa, but those days are gone. Talk to your younger son and if he does not change then the best is that you move them to different houses. That way they will not face each other and peace will be restored. Please understand sath reh kar larne see aacha hai dor ho kar shanti bani rahe.
In the horoscope of Nitish, Venus is conjoined with Ketu and debilitated in the Navamsha chart. Ask him to do remedies for Venus.
1. Visit Temples on Friday and donate Milk, Sugar, White Flowers etc
2. Recite Mantra Om Shukaraye Namaha
3. Donate biscuits to small Girls every Fridays
Blessings,
Navneet Khanna
Astrologer