pass idcolumn and selected dropdown l

Question

In my view.cshtml I have two columns : 

EnrolNumber	Name	Type
1	abc	here is dropdown

 this table has almost 50 rows

 button of type submit

 

now on click of the button I want to call a controller by passing the the enrolnumber and the selected dropdown value for whole table. 

 

What is the best way to do this ?

 

Any help is apreciated .Thanks in advance