The figures A, B, C shows the separation of the commercial dyes from the waste water after treatment with chitosan starch based nanocomposites. The flocculation was removed by filtration. In each case dye particles are visible on filter paper (A ii, B ii, C ii). The filtrate in the test tube (A iii, B iii, C iii) clearly shows the removal of dyes from commercial samples. Nano composites before and after treatment are also shown underneath the test tubes.