The first fraction (f1) corresponds to long chains of amylopectin and the second fraction (f2) corresponds to short chains of amylopectin. The average chain lengths of amylopectin (CLw) of the 20 waxy rice starches ranged between 15.8 (WR11) and 18.7 (BW) Jane et al. (1999) reported that the CLw of cereal amylopectin ranged between 18.8 (waxy rice) and 23.5. Length of long amylopectin chains (f1) varied between 51.3 (WR11) and 58.5 (WR5) ,respectively whereas short amylopectin chain length (f2) ranged between 13.5 (WR11) and 15.6 (BW, TKW1). The average ratio of short-to-long chains (S/L) was found to be 3.9 for the 20 waxy rice starches Hence it can be said that mutant starches have more short chains in proportion to long chains than starches of the named varieties. Chemical modification of starches can reduce or enhance the retrogradation. Waxy, high amylopectin, starches have also much lesser tendency to retrogradate. Amylopectin molecules is a branch affecting the affects condensation.