Pitras are our own ancestors who have been thrown into pretha yoni or any other lokas and as a result of this they become extremely restless and sad and expect to get mukti from that state through the karma of their successors they are considered to be more important to a person than any other devathaas(excluding sadguru) as they will be having blood relationship with their successors. They are considered equal to Gods. as this body ours has come into existence because of our ancestors, pitra dosha nivaran is considered to be a very important duty of a person. if the pitras are satisfied and happy with ur shraddha(actions offered with shraddha) they can bring joy and clear ur path to success in all spheres. There are many rituals of pitra Dosha nivaran. Titr dosh is one of the biggest obstacle on the path to siddhi. Success is almost not possible if one has pitra dosh in ones life.
How To Recognize it in Kundali : 9th house in a horoscope is called house of dharma, father. When 9th house is under influence of malefic planets, this shows the lack of fulfillment of paternal desire. Natural malefic planets like sun, mars, Saturn, may be yogakarak for some lagnas, but rahu and ketu are always malefic for all lagnas. I have found that when 9th house, 9th lord, 9th house from the moon or the lord of 9th from the moon is under influence of rahu and ketu this indicates Pitra Dosh. Such natives are affected by disruption of education, employment, progress. Those who are physically and mentally handicapped have such affliction. In your chart both the 9th house and 9th lord is under influence of rahu-ketu. This is definitely Pitra dosh.
Remedy 1: On any somwati amavaasya (when there is amaavasyaa and also Monday) go to peepal tree, offer one janeu to tree and one to Lord Vishnu. Pray to tree and Lord Vishnu. Then do 108 Parikrama of tree, with each Parikrama offer a sweet to tree. While doing Parikrama continuously chant the mantra " OM NAMO BHAGAWATE VAASUDEWAAYA".After doing parikrama again pray to peepal tree and Lord Vishnu and seek forgiveness.
Remedy 2: One more remedy is to feed crows and fish with rice mixed
with gee and made into balls on every Saturday.