  Faint young Sun paradox (FYSP) is one of the unsolved problem in solar
physics. The present study aims to get a possible solution for the FYSP through
sun-like G stars and their exoplanetary systems. Using physical properties of
exoplanetary data, an empirical relationship between the rate of mass loss
($\frac{dM}{dt}$) with stellar mass (M$_{\star}$) and age ({\em t}) is
obtained. We found mass loss rate varies with stellar mass as $\propto$
$(M_{\star}/M_\odot)^{-3.788}$ and proportional to the age as $\propto$
t$^{-1.25}$, which indicates rate of mass loss is higher during early
evolutionary stages. Then we applied mass loss corrections to stellar masses of
G-type stars with planets and obtained their initial masses at the early
evolutionary stages. Subsequently, we applied these relationships to calculate
the mass loss rate and mass of Sun at the early evolutionary stage, which is
found to be $\sim$ 10$^{-11}$ solar mass per year and $\sim$ (1.061$\pm$0.006)
solar mass respectively. The higher solar mass can probably alleviate the
problem of the faint young Sun paradox. Then the estimated initial stellar
masses of the host stars are used to obtain a best power law relationship with
the planetary masses that supports the hypothesis that the {\em massive stars
harbour massive planets.} Finally, by using the same empirical power law,
planetary mass in the vicinity of Sun is estimated to be $\sim$ (0.84$\pm$0.19)
Jupiter mass, which is much higher compared to the present solar terrestrial
planetary mass. Hence, this study also suggests that there is a missing
planetary mass in the vicinity of the Sun, which can solve the FYSP problem.
