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Based on Martin like potential, the S-wave masses of quarkonia have beenreviewed. Resultant wave functions at zero inter quark separation are employedto compute the hyperfine splitting of the nS states and the leptonic anddigamma decay widths of $n{^3S_1}$ and $n{^1S_0}$ states of quarkoniarespectively. Analysis on the level differences of S-wave excited states ofquantum mechanical bound systems show a systematic behaviour as n-increases. Inview of such systematic behaviour expected for quarkonia, we observe thatY(4263) and X(4630) $1^{--}$ states are closer to the 4S and 6S states while$\psi(4415)$ and Z(4430) are closer to the 5S state of $c\bar{c}$ systems.Similarly we find $\Upsilon (10865)$ is not fit to be the 5S state of$b\bar{b}$ system. while $Y_b (10880)$ observed by Belle or (10996) observed byBabar fit to be the 6S state of bottonia. Our predicted leptonic width, 0.242keV of $\Upsilon (10579, 4S)$ is in good agreement with the experimental valueof 0.272 $\pm$ 0.029 keV. We predict the leptonic widths of the pure 5S and 6Sstates of upsilon states as 0.191 keV and 0.157 keV respectively. In the caseof charmonia, we predict the leptonic widths of the 4S, 5S and 6S states as0.654 keV, 0.489 keV and 0.387 keV respectively.

Leptonic and Digamma decay Properties of S-wave quarkonia states