Meaning of doshas in Vedic astrology is the condition that has flaws, un-favorable or not good. The word doshas has been taken from the Sanskrit language. These Indian astrology doshas occur because of the un-favorable position of the planets in the twelve houses of your birth chart. Now to identify the position of the planets your date and time of birth is required. Based on that the birth chart is prepared which will tell the position of planet when you were born. If the malefic planets ie saturn, rahu, mars etc are placed in certain specific houses then they affect your good part of the horoscope leading to vedic astrology doshas.
Maximum percentage of doshas are caused by the planet mars. It is responsible for about 100% of the available doshas. Apart from this there are other planets like Sun, Saturn and Rahu that lead to doshas in vedic astrology. Saturn is responsible for 75% of the doshas, Sun for 50% and Rahu for 25% of the vedic astrology doshas.
Manglik Dosha/ Kuja Dosha/Mangal Dosha Manglik dosha in Indian astrology occurs when the position of planet mars in 1,4,7,8,12, house. So if the planet mars is present in any of these five houses it is going to cause manglik dosha or kuja dosha. Some astrologers also consider the dosha if the mars is in 2nd house. 50% of the people have this dosha in their birth chart. The biggest misconception regarding manglik dosha in vedic astrology is the death of the spouse if one suffers from manglik dosha. It does not happen in every case. This happens when other bad combinations of the planets are also there in your chart. Manglik doshas in vedic astrology is not there if mars is present in its own house. Even if your 9th house has strong benefic planet then the effect of mars placed in 7th and 8th house are canceled.
Kaalsarpa dosha Although our ancient vedic astrology does not mention Kaalsarpa dosha yet it is feared by all. In Kaalsarpa dosha, meaning of kaal is death and sarpa is snake. Kaalsarpa dosha in Indian astrology occurs when all the planets are to one side of Rahu and Ketu. The intensity of Kaalsarpa dosha increases when all the planets come within the arc from Rahu to ketu. Misfortunes and obstructions in the progress are the result of Kaalsarpa dosha. There are 12 types of Kaalsarpa doshas which are Anant, Kulik, Vasuki, Shankhapal, Padma, Mahapadma, Takshak, Karkataka, Shankhanaad, Patak, Vishakata and Sheshanag. These vedic astrology doshas are named after the name of the snakes.
Nadi Dosha Nadi dosha occurs when people with similar nadi get married. Nadi is one of the eight aspects that are considered while checking your compatibility with your partner. The points assigned to nadi are 8 which are the maximum. Children born to parents having nadi dosha are weak. So it must be taken seriously.
Shrapit Doshas/Shrapit Yoga The word shrapit means the one who has been cursed. Shrapit dosha occurs when in the single sign of your horoscope, both Saturn and Rahu are present. It happens because of the wrong deeds that you have done in your past life. Because of Shrapit doshas in your chart you will not get the good result even if your present birth chart is showing good combinations of the planets. But like Kaalsarpa dosha there is no roots of Shrapit yoga in ancient astrology. Even in Lal Kitab (Red Book) Rahu and Saturn when come together are called Nagmani (Snake' jewel) that is considered good. Person with this combination will have lots of black money.
Pitra Dosha Now if our ancestors have done something bad then we will suffer from Pitra dosha or paitrik dosha. It is because of the position of Saturn and Rahu that pitra dosha in the category of Indian astrology doshas occur. Sun according to vedic astrology is the father and moon is the mother whereas Rahu and Saturn are the enemies of these two. So if Sun/Moon, Rahu and Saturn are in same house then pitra dosha occurs. You will not progress because of this dosha.
Kartik Janma Dosha The month of Kartik according to Hindu mythology starts in Mid October and ends in Mid November. Sun is considered weak during this time so that affects you and your family in the form of kartik janma dosha. Sun is considered as the reason of health, father, senior citizens, name and fame. A person born during this period will surely have the kartik janma dosha.
Although meaning of doshas is same but type of vedic astrology doshas are different. Only the expert astrologer can tell you the type of doshas in your birth chart. You can then ask for the remedies and perform the pujas to finish the Indian astrology doshas.