distinct in mssql server

I am trying a SQL query MSSQL server 2005.

select  distinct emp_code , SSN, name
from dbo.employee
where 
    (City = 'Abc') 
    or
    (Country = 'India') 
and Joining_date between getdate()-60 and getdate()

which is returning 76 queries

But if instead I use

select  distinct emp_code
    from dbo.employee
    where 
        (City = 'Abc') 
        or
        (Country = 'India') 
    and Joining_date between getdate()-60 and getdate()

which is returning 73 records.

I understand that in first query Server is returning where all 3 columns are distinct. How should I write the query if I want only distinct emp_code ?

I have tried using group by emp_code but it is throwing an error Please help!