Need some inputs for lagna and navamsa

[Guest Abhishek]

I need your inputs for some of the points on my chart .
 
1>I have rahu and mars in navamsa in 10th house .What does it signify?
 
2> I have upapadha lagna as taurus in 8th house lagna birth chart .Its significance?
 
3> I have malefic rahu in 7th lagna birth chart .
 
4>Have venus in 7th house aries  in navamsa chart ? What it means?

 

 

Birth details :

 

24- Jan -1986

00:11 am (midnight ) aridra male

gemini moon vedic sign , capricorn vedic sun sign , libra ascendant

birth place -mumbai