In this paper previously [1, 2] defined lepton mass generator XE is redefined in a unified approach and is shown that it is more fundamental than the fine structure ratio α. Muon and Tau masses are fitted. With a new (uncertain) quantum number at n=3, a new heavy charged lepton is predicted at 42260 MeV. Without considering the classical gravitational constant Gc establishing a relation in between charged particle ‘s s mass and charge is impossible. Till now Avagadro number  is a mystery. The basic counting unit in chemistry, the mole, has a special name Avogadro ‘s s number in honor of the Italian scientist Amadeo Avogadro (1776-1856). The commonly accepted definition of Avogadro number is the number of atoms in exactly 12 g of the isotope 12/6 C and the quantity itself is 6.02214179(30) x 10ˆ23 . Considering N as a fundamental input in grand unified scheme authors made an attempt to correlate the electron rest mass and its charge. It is also noticed that h is slipping from the net and there lies the the secret of true grand unification.
As the culmination of his life work, Einstein wished to see a unification of gravity and electromagnetism  as aspects of one single force. In modern language he wished to unite electric charge with the gravitational charge (mass) into one single entity. Further, having shown that mass the gravitational charge was connected with space-time curvature, he hoped that the electric charge would likewise be so connected with some other geometrical property of space-time structure. For Einstein [5, 6] the existence, the mass, the charge of the electron and the proton the only elementary particles recognized back in 1920s were arbitrary features. One of the main goals of a unified theory should explain the existence and calculate the properties of matter.
Stephen Hawking – in his famous book- “A brief history of time ”  says: It would be very difficult to construct a complete unified theory of everything in the universe all at one go. So instead we have made progress by finding partial theories that describe a limited range of happenings and by neglecting other effects or approximating them by certain numbers. (Chemistry, for example, allows us to calculate the interactions of atoms, without knowing the internal structure of an atomic nucleus). Ultimately, however, one would hope to find a complete, consistent, unified theory that would include all these partial theories as approximations, and that did not need to be adjusted to fit the facts by picking the values of certain arbitrary numbers in the theory. The quest for such a theory is known as “the unification of physics . Einstein spent most of his later years unsuccessfully searching for a unified theory, but the time was not ripe: there were partial theories for gravity and the electromagnetic force, but very little was known about the nuclear forces. Moreover, Einstein refused to believe in the reality of quantum mechanics, despite the important role he had played in its development.