How to send array items to the single webapi parameter

Question

I have one web api method which will return JSON data by with one input paramter, the sample url is below,

 

mycases-pivot-data?RequestDataType=Export&TaxApplicationId=3 

 

input paramter is  TaxApplicationId and now I want to send more than one value to the single paramter ,which means I need to pass the array items to TaxApplicationId.So can anyone help me how to do it??