Comparing the basins of attraction for Kanwar-Bhatia-Kansal family to the best fourth order method

There are relatively few optimal fourth order methods for solving nonlinear algebraic equations having roots of known multiplicity m. In a previous paper we have compared 5 such methods, two of which require the evaluation of the (m−1)st root. We have used the basin of attraction idea to recommend the best optimal fourth order method. Here we compare the family of methods developed by Kanwar et al. (2013)- to the best known method. We will also point out some mistake in deriving that family.