Constitutional dark circles are difficult .. First has to be evaluated if it is pigmentation or hollowness... Desi ghee...not aware if it cures Could use under eye lightening creams.. Maintain lifestyle. Or go for fillers if required . Occuloplatic surgeon or cosmetologist can guide u

Sir don't apply any home made preparations or desi ghee under your eyes. Few instructions: (1) Cold compress to the eyes 3 times a day (Can dip clean cotton in refrigerator cold water and keep over closed eyes for 30 seconds) (2) Healthy nutritious diet (3) Adequate sleep for at least 7-8 hours (4) Adequate water intake at least 3-4 litres / day (5) Follow proper working pattern for your Laptop/ Computer/Mobile use (6) Daily Exercise (7) Do not rub eyes (8) Regular use of spectacles if any (9) Consult a Dermatologist for treatment options like Under eye creams,chemical peels, lasers and fillers. (10) Dark circles can be hereditary, related to certain hemoglobinopathies, allergies, lack of sleep, lack of nutrition , UV exposure , aging, smoking etc. So root cause has to be dealt with.