I generated an sql script like this,
INSERT [dbo].[TableName] ([Sno], [Name], [EmployeeId], [ProjectId], [Experience]) VALUES (1, N\'Dave\', N\'ESD157\', N\
N is to specify that its a string type value.
[N]'tsql_string'
Is a constant string. tsql_string can be any nvarchar or varchar data type. If the N is included, the string is interpreted as nvarchar data type.