Input, Save and Retrieve data from Sql in Marathi Language

Question

I am developing a windows application based on .Net. I want to take input from user in marathi language and save the same in sql server database. Also retrieve the data from sql server in marathi language. I have searched and searching now too for solution.
 
I just know that for saving data in marathi or any other language in sql server, the datatype should beNvarchar. 
 
Please Note that the client pc is not having Internet Connection so I cannot use Google Translate service or any other service which need Internet Connection.
 
please help me...
 
Thanks in Advance !!!....