  The high-spin states in 153Ho, have been studied by 139 57 La(20Ne, 6n)
reaction at a projectile energy of 139 MeV at Variable Energy Cyclotron Centre
(VECC), Kolkata, India, utilizing an earlier campaign of Indian National Gamma
Array (INGA) setup. Data from gamma-gamma coincidence, directional correlation
and polarization measurements have been analyzed to assign and confirm the
spins and parities of the levels. We have suggested a few additions and
revisions of the reported level scheme of 153Ho. The RF-gamma time difference
spectra have been useful to confirm the half-life of an isomer in this nucleus.
From the comparison of experimental and theoretical results, it is found that
there are definite indications of shape coexistence in this nucleus. The
experimental and calculated lifetimes of several isomers have been compared to
follow the coexistence and evolution of shape with increasing spin.
