Hi There Kumara,
Judging from the way youve copied the Data here, Im going to assume you have the data presented in a grid, which is great! It helps us make this one process a little more efficiently.
A few questions for you; First, are all the individual Serial Numbers unique? specifically, when you search for a serial number, are you Always expecting only one result? Second, when querying the table, will you or your user always know the entire Serial Number? or just a portion of it?
Assuming that the individual Serials are Unique, and the user will always know one of the Serial Numbers in its entirety, the best way would be to utilize a Loop Through Grid Action with a Nested Conditional Statement, which checks that the 'Serial NO' field Contains a particular value.
The Above Screenshot is an example of a button which will retrieve a value in a scenario similar to yours. The Important part here is the Conditional Statement, which checks if Value from Row - Serial Number Contains my chosen serial number. If it does, then it processes the Third Action, which in my example enters the Name of the rows Item into a value on screen. You can shoose any action for this step (ie assign to Action result etc...)
If you want me to break down any particular part of this any further, let me know and Ill be happy to help out.
Thanks Kumara.
-Ben