by product waste of soda ash industry or pure calcium chloride to separate sulphate concentrating bittern in solar pans to produce mixture of salt and carnallite and finally processing the mixture to produce low sodium salt this salt is optionally made free flowing and iodized with suitable additives the present invention discloses the preparation of low sodium salt containing different proportions of nacl and kcl directly from brine bittern in solar pans and it obviates the need of any external addition of food grade kcl and other nutrients in salt the inventive steps adopted in the present invention are i realization that desulphated bittern of density 29 30 u00b0 be u2032 that yields a mixture of sodium chloride and carnallite upon further evaporation can be a source for recovery of low sodium salt directly ii control of bittern density of desulphated bittern and charging of carnallite pan in a manner so as to adjust nacl content in crude carnallite mixture iii decomposition of the double salt in the solid mixture in a manner so as to achieve the nacl kcl mixture of desired ratio with highest possible yield iv simple method of industrial centrifugation to yield low sodium salt composition with desired purity without any need for washing of the solid and v recycling of the supernatant into carnallite pan so as to maximize yield of low sodium salt from given quantity of bittern the following examples are given by way of illustration and therefore should not be construed to limit the scope of the present.