$m$ the mass of a particle and $d = 
({\rm V}/N)^{1/3}$) and corresponding non-zero momentum ($q_o = \pi/d$), and (iii) the real form BEC that exists in a SIB is the macroscopic condensation of bosons as ([**q**]{}, -[**q**]{}) pairs in their G-state characterized by $q=q_o=\pi/d$ and $K=0$.

Motivated by all such observations, one of us [@jain1] used more realistic pair of particle basis [PPB]{} to conclude his non-conventional microscopic theory (NCMT) which emphasizes a pair as the basic unit of the system. The theory not only explains different properties of He-II at quantitative scale [@jain1; @simanta; @jain4] but also reveals that: (i) particles (G-state) of a SIB have identically equal energy ($\varepsilon_o$) and corresponding non-zero $q=q_o=\pi/d$ which agrees with a recent study by Jain [@jain1], (ii) they constitute a kind of close packed arrangement of their representative wave packets (CPA-WP) of identically equal size $\lambda/2 = h/2p = d$, (iii) they are allowed to move only coherently in order of their locations, obviously, with no relative motion and mutual collision, and (iv) they occupy phase ($\phi$) positions which differ by $\Delta\phi = 2n\pi$ (with $n=$ 1,2,3, ...). In addition, the theory finds that all the three characteristics of the G-state 