Grid view Index value

Gridview bind data in Table format. it is define format like Rows and Columns

------------------
id | name |
----|------------|
1 | Rakesh |
----|------------|
2 | Joseph |
----|------------|

e.RowIndex

This is Which row you have been clicked in the grid view

.Cells[0].Text;
This Mean 0 th cell Value

Mygrid.Rows[e.RowIndex].Cells[0].Text;

This mean the N th row of 0 th cell value in the Gridview

(ie) if you clicked second row then the result would be second row first cell value - 2

(ie) if you want the values of cell 1 of second row of above grid so you can write

Mygrid.Rows[1].Cells[1].Text;

the Result would be : Joseph