The author name Mahwish Waheed should be replaced with Mehwish Waheed.

In the body of the paper,(from , , to , ) should be replaced with the following values (from , to , );(from , , to , n.s.) should be replaced with the following values (from , to , n.s.);(from , , to , ) should be replaced with the following values (from , to , );(from , , to , n.s.) should be replaced with the following values (from , to , n.s.).

Figure 1 is corrected as follows.