How to Insert Urdu Language Using Dataset Insertion c#

Question

Hi i tired to insert data in urdu language using dataset insertion but its showing ??? in Table Narration column. The field datatype is Nvarchar.

 

Here is the code that i am trying to insert

Here is the dataset

 

 

Here is the parameters

 

 

What i am missing?.. This process still showing ????? when trying to insert urdu language in Narration column.