of nanowires (nanocylinders) encapsulated within ZnS nanotubes remains a type-I super- conductor down to diameters smaller than the coherence length ( ξ$_{bulk}$ = 364 nm ) of bulk Indium [23]. MOI measurements on such In samples are not practicable due to the resolution limit of the garnet films, however, a lot of information regarding the nature of the IS can be obtained by sensitive magnetization studies. In this letter, we demonstrate via magnetic measurements: (i) the occurrence of topological hysteresis in mesoscopic In cylinders and the observation of different critical fields during flux entry and flux exit, (ii) the existence of a plethora of metastable configuration and recipes to access them, and (iii) the superheating and supercooling of SC and N state respectively across the SC-N transition. Based on the results, useful and subtle analogies can be made for other systems manifesting a modulated phase structure due to an interplay of short range and long range interactions. The sample comprising In-ZnS core-shell structures was synthesized in a high-temperature vertical induction furnace utilizing the recipe described before [24]. The charge consisting of 0.1 g of In 2 S 3 , 0.25 g of ZnS, and 0.05 g of activated carbon was thoroughly mixed and put in a graphite crucible placed at the center of the furnace. An additional 0.5 g of S was put in another graphite crucible that was placed at the bottom of the furnace. Initially the furnace was evacuated to 1 × 10 − 5 Pa and then filled with 99.99 % of Argon gas. The crucible was rapidly heated to 1300 $^{o}$C , where it was kept for 45 min in flowing (0.15 l/min) Ar gas and then the furnace was switched off to allow a natural cooling to room temperature. Sample was collected from several locations from the deposition tube placed at the top of the crucible. High resolution transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS) mapping on the sample was performed using a JEOL JEM-3000F (300kV) TEM. For this, the core-shell structures were first dispersed in ethanol by ultrasonication and then deposited dropwise onto a holey carbon coated copper TEM grid. The magnetic measurements were performed using a Quantum Design MPMS XL magnetometer utilizing the reciprocating sample option (RSO) with 1 cm amplitude. The MPMS XL magnet has a field uniformity of 0.01 % over 4 cm length leading to a maximum field inhomogeneity of 0.02 Oe during the RSO measurements in our experiments. Ac susceptibility ( χ ′ $_{ac}$) measurement was performed using ac-option of Quantum Design MPMS SQUID magnetometer. Figure 1 shows the χ ′ ac versus T plot for a collection of In-ZnS core-shell structures obtained at an ac-drive ( H$_{ac}$ ) of 1 Oe with drive frequencies ( f ) of 1 Hz, 11 Hz, and 111 3