Mars is the planet of courage and initiative and it is retrograde in your natal chart. It means that you will be very prudent with your work and in everything you do. You will view both sides the good and the bad before you take any decision. Mars is conjoined with Ketu or the Southern Moon node. Ketu is known to behave and act very much like Mars. Both being in your 9th house or the house of luck and destiny indicate that you will write your own destiny with your efforts. With the energy and the power in you, you have the ability to make a mark in your life and those around you.
Ketu indicate our past Karma and actually Ketu in Scorpio is good as it is exalted in this sign. Ketu and Mars indicate past connection which will strengthen and take you forward in your endeavours. Ketu in Scorpio indicates interest in occult sciences and finding mysteries.
Your Mars is not in eights house but in eight sign that is Scorpio. Anyway you do not have any mangal dosha. No you are not mangalik.