It is the prevalent system of Hindus that the name of a person is kept according to he prescribed letters of a particular Nakshatra in which the native is born. But nowadays, the name given by the parents are not by taking into consideration the nakshatra(Constellation) in which the Moon was at the time of birth. This creates confusion at the time of casting the horoscope at a future time. If names are kept strictly in accordance with the cannons of Astrology, problems which may be faced in future at the time of erecting a horoscope for various purposes, particularly for marriage etc., can be minimized, as there is likelihood of forgetting the time and day of birth.

Following are the first letter or to be more specific 'SOUND' prescribed for various Nakshatras: