  We point out that although the pioneering work of Oppenheimer and Snyder
(OS), technically, indicated the formation of an event horizon for a collapsing
homogeneous dust ball of mass $M_b$ and radius $R_b$, the Eqs. (32) and (36) of
their paper actually demand that no trapped surface is formed $ 2GM_b/ R_b c^2
\le 1$, and $M_b \equiv 0$! Anybody may verify it. Further, by analyzing the
general inhomogeneous dust solutions of Tolman in a proper physical
perspective, we show that, all dust solutions are characterized by $M_b=0$.
Next, for a collapsing fluid endowed with radiation pressure, we discover that
the collapse equations obey the same Global Constraint $2GM /R c^2 \le 1$ and
which specifically shows that, contrary to the traditional intuitive Newtonian
idea, which equates the gravitational mass ($M_b$) with the fixed baryonic mass
($M_0$), the trapped surfaces are not allowed in general theory of relativity
(GTR). For continued collapse, the final gravitational mss $M_f \to 0$ as $R\to
0$. Thus we confirm Einstein's and Rosen's idea that Event Horizons and
Schwarzschild Singularities are unphysical and can not occur in Nature. This,
in turn, implies that, if there would be any continued collapse, the initial
gravitational mass energy of the fluid must be radiated away $Q\to M_i c^2$.
This also implies that, gravitational collapse of massive stars should give
rise to Ultra Compact Objects and emission of energy much more than what is
obtained in Supernova Events
