Selecting exceptionally Heritiera fames seedlings from nursery is a promising and low-cost means of tree improvement, according to the study. From 2010 to 2016, 18,000 outstanding seedlings were chosen from nursery in the Sundarban and out planted. The final assessment as to efficiency of seedlings selection from selected trees of top-dying affected and non-affected (Healthy) areas awaits comparison of progeny from chosen selects with those from similarly chosen controls to see how much of the phenotypic gain is truly genetic. This investigation involved more selections and plantations than had not been tried for H. fomes in the past. The next step in evaluating nursery selection is to compare progeny from selects with those of controls to see how much of the phenotypic gain is truly genetic. The great promise of Ls, L4, L12, Lie, Lso, L35 & L36 line of H. fomes trees has been achieved with expected superior genetic material of unknown origin. This is reflected in the high variability observed in growth amongst individuals. Using advanced propagation techniques, these can be cloned and potentially provide the genetic base for a highly successful clonal forestry program for creation of top dying resistant H. fomes trees.