More than two planets in house

If benefic planet in retrograde and asthangatha what will happen and for the same conditions to malefic planet what will happen ??

How many time sade sati will happen in a person life Is it happen for only once or more

Sir sometimes finding position of plants difference from d1 chart and bhavachart. While studying about position of planets and bhavas which chart we have to follow?

sun ki 10degress ni moon 8degress ni cheparu ga remainb 7 plants ki degrees chepandi. io_Yl8WvmBA https://www.youtube.com/watch?v=io_Yl8WvmBA https://www.youtube.com/watch?v=io_Yl8WvmBA

If 9th lord will become badhaka then 9th lord like saturn will placed in 8th house with retrograde what will happen plz tell me.