Relativistic compact stars in Tolman spacetime via an anisotropic
  approach
  In this present work, we have obtained a singularity-free spherically
symmetric stellar model with anisotropic pressure in the background of
Einstein's general theory of relativity. The Einstein's field equations have
been solved by exploiting Tolman {\em ansatz} [Richard C Tolman, Phys. Rev.
55:364, 1939] in $(3+1)$-dimensional space-time. Using observed values of mass
and radius of the compact star PSR J1903+327, we have calculated the numerical
values of all the constants from the boundary conditions. All the physical
characteristics of the proposed model have been discussed both analytically and
graphically. The new exact solution satisfies all the physical criteria for a
realistic compact star. The matter variables are regular and well behaved
throughout the stellar structure. Constraints on model parameters have been
obtained. All the energy conditions are verified with the help of graphical
representation. The stability condition of the present model has been described
through different testings.
