  Scalar Tensor Vector Gravity(STVG) is a fully covariant Lorentz invariant
alternative theory of gravity also called as MOdified Gravity(MOG) which
modifies General Relativity(GR) with dynamical massive vector field and scalar
fields. In STVG the mass $\mu$ of the vector field $\phi$ and the Universal
gravitational constant G enjoys the status of a dynamical field. We use the
reconstructed total cluster mass obtained from X-ray observations by XMM-Newton
telescope in combination with the Sunyaev-Zel'dovich(SZ) effect observed within
Planck all-sky survey to estimate the parameters $ \alpha$ and $\mu$ with
modified cluster mass in MOG.
