sir , i need more explanation about the directional nature of covalent bond

Covalent bonds are 'electron sharing' bonds, as the name implies, but the sharing doesn't have to be equal. Any tendency for the shared electrons to favor one side of the bond over the other in their average distribution will lend aasymmetry to the arrangement of the atoms (if there are three or more atoms participating in the bond). A good example of a directional covalent bond is water, where the molecule has an angular structure due to the asymmetric distribution of electrons between hydrogen and oxygen.

In covalent molecule, the atoms have definite relative position in space with respect to each other. In non-spherical orbitals(p, d, f, etc.) electron density is concentrated in definite direction thus, the resultant bond will have the same direction.
Thanks & regard
Aarti Gupta
askiitians Faculty