What is analysis and result of vargottam ketu in 1st house of pisces ascendant with aspect of mars from 10th house.

In meen lagna , mars(17°) venus(26°) jupiter and mercury in 10th house, but lagnesh jupiter(2°) and mercury(8°) combust by sun(28°) in 9th house. How to analyze and make lagnesh strong

Can marriage between people of same lagna and same rashi, same janma nakshtras (different charan) be compatible

In meen lagna mars(17°) debillated in 5th house ,aspected by saturn(12°) from 11th and conjuncted by exhalted jupiter and venus(17°). Whereas 5th lord moon(2°) in 6th house , but in 5th house as per chalit chart. Is this a case of neech bhang yoga.

How to analyze and what is the result when two planets are sitting or exchange their ruled nakshtras.