An evaporator assembly (E) for a vertical flow type ice-making machine , the assembly (E), comprising: a plurality of tubes for circulating a refrigerant; a plurality of conductive protrusions thermally coupled to and extending from each of the plurality of tubes , wherein each of the plurality of conductive protrusions defines an ice-making region; and a non-conductive plate arranged adjacent to the plurality of tubes , wherein the non-conductive plate defines a plurality of zig-zag pattern from one end to another end, and is defined with a provision to accommodate each of the plurality of conductive protrusions ; wherein the plurality of conductive protrusions exchanges heat with the refrigerant flowing through the plurality of tubes and forms the ice layer by layer, and a shape of at least one surface of the ice is defined by the non-conductive plate , and wherein the plurality of conductive protrusions extending from each of the plurality of tubes defines an array, and the array of conductive protrusions extending from each of the plurality of tubes is inclined at an angle to an inclined surface of a corresponding zig-zag pattern of the non-conductive plate , such that each of the plurality of conductive protrusions is perpendicular to the inclined surface of the non-conductive plate . a plurality of tubes for circulating a refrigerant; a plurality of conductive protrusions thermally coupled to and extending from each of the plurality of tubes , wherein each of the plurality of conductive protrusions defines an ice-making region; and a non-conductive plate arranged adjacent to the plurality of tubes , wherein the non-conductive plate defines a plurality of zig-zag pattern from one end to another end, and is defined with a provision to accommodate each of the plurality of conductive protrusions ; wherein the plurality of conductive protrusions exchanges heat with the refrigerant flowing through the plurality of tubes and forms the ice layer by layer, and a shape of at least one surface of the ice is defined by the non-conductive plate , and wherein the plurality of conductive protrusions extending from each of the plurality of tubes defines an array, and the array of conductive protrusions extending from each of the plurality of tubes is inclined at an angle to an inclined surface of a corresponding zig-zag pattern of the non-conductive plate , such that each of the plurality of conductive protrusions is perpendicular to the inclined surface of the non-conductive plate . wherein the plurality of conductive protrusions exchanges heat with the refrigerant flowing through the plurality of tubes and forms the ice layer by layer, and a shape of at least one surface of the ice is defined by the non-conductive plate , and wherein the plurality of conductive protrusions extending from each of the plurality of tubes defines an array, and the array of conductive protrusions extending from each of the plurality of tubes is inclined at an angle to an inclined surface of a corresponding zig-zag pattern of the non-conductive plate , such that each of the plurality of conductive protrusions is perpendicular to the inclined surface of the non-conductive plate . <EOS>