  Systems with quasiperiodic disorder are known to exhibit localization
transition in low dimension. After a critical strength of disorder all the
states of the system become localized, thereby ceasing the particle motion in
the system. However, in our analysis we show that in a one dimensional
dimerized lattice with staggered quasiperiodic disorder, after the localization
transition some of the localized eigenstates become extended for a range of
intermediate disorder strengths. Eventually, the system undergoes a second
localization transition at a higher disorder strength leading to all states
localized. We also show that the two localization transitions are associated
with the mobility regions hosting the single particle mobility edges. We
establish this re-entrant localization transition by analyzing the
eigenspectra, participation ratios and the density of states of the system.
