In which of the following p^π-d^π bonding is possible ?

The π bond in  ${\mathrm{PO}}_4^{-3}$ is formed by the overlapping of d - orbitals of "p" & p-orbitals of oxygen, & the formed π-bond is said to be d^π-p^π bond.

In ${\mathrm{CO}}_3^{-2},{\mathrm{NO}}_3^{-},{\mathrm{NO}}_2^{-}$  the central atom donot have empty d-ortials in its valency shell therefore these central atoms donot form the d^π-p^π bond.