  The nonlinear chiral extension of colour dielectric model has been used in
the present work to study the properties of quark stars. Assuming that the
square of meson fields develop nonzero expectation value, the thermodynamic
potential for charge neutral interacting two and three flavour quark matter, in
beta equilibrium, has been calculated up to second order in quark gluon
interaction term in the Lagrangian. The equation of state has been found to be
softer for higher quark masses and interaction strength. The quark stars
properties are found to be dependent on EOS. The mass, radius, moment of
inertia and gravitational red shift decrease as the equation of state becomes
more soft.
