According to Vedic astrology, there are 27 nakshatras (constellations) in total. Out of 27 nakshatras, six are ruled by Mercuy and Ketu. These nakshatras are Ashwini, Ashlesha, Magha, Jyestha, Moola and Revathi. A person born with the placement of moon under any of these 6 nakshatras is said to have Gandmool Nakshatra in his/her horoscope. The intensity and nature of gandmool nakshatra depends on the specific nakshatra. Gandmool Nakshatra is said to be inauspicious and need to be pacified to minimise / eliminate its effects.
According to the best astrologer in India, Sunny Sharma ji, Gandmool nakshatras needs a vedic solution, else it will create lot of troubles and hindrances in the life of a person. In case if a child is born on Tuesday or Saturday having Gandmool dosha in his horoscope, hindrances and problems in his life will increase manifolds. A child may see a death of his father or a mother or having heart ailments, may be inauspicious for his family, his spouse, his siblings. Hence, remedies for gandmool dosha should be highly considered.
Though not everything related to gandmool nakshatra is inauspicious, it is often seen that a person born under this nakshatra is very bright intelligent, ambitious and hardworking. They reach to success than most of their peers. Some of the popular celebrities who are born under gandmool nakshatras are Amitabh Bachchan, Sunil Dutt, Mahatma Gandhi, Nargis and Sunil Dutt.
Also read about Pitar Dosha in horoscope and its ills effects: https://www.sunnyastrologer.com/blog/what-is-pitra-dosha-pitra-dosh-remedies-for-marriage
* A special gandmool nakshatra pooja by an experienced astrologer needs to be performed on the 27th day of the birth of the child. The pooja must be performed once on a lifetime to pacify the nakshatras.
* If a child is born under any of the constellation namely, Ashwini, Megha, or Moola, he/she needs to worship Lord Ganesha throughout his life. Or, if a child is born under Ashlesha, Jyestha, or Revati, he/she needs to worship the ruler of these constellations, Mercury.
* On Wednesday, it is highly recommended to donate anything green like green vegetables, coriander, green amlas, Emerald, or bronze utensils.