First of all thankyou for replying to my query. I have checked odbcinst.ini file and i have a different driver name Please find the below details 

[SQL Server Native Client 11.0]
Description=Microsoft SQL Server ODBC Driver V1.0 for Linux
Driver= /.../..../libsqlncli-11.0.so.1790.0
Threading=1
UsageCount=1

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Now i have modified the code as below 


my$dbh1 = DBI->connect("dbi:ODBC:DRIVER={SQL Server Native Client 11.0
+};Server=abc.cde.corp.org\\XYZ;Database=TEST;UID=$user;PWD=$password"
+);

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Now i got a different error Please find the below 


DBI connect('DRIVER={SQL Server Native Client 11.0};Server=abc.cde.cor
+p.org\XYZ;Database=TEST;UID=abc;PWD=defv','',...) failed: [unixODBC][
+Driver Manager]Driver's SQLAllocHandle on SQL_HANDLE_HENV failed (SQL
+-IM004)

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In reply to Re^2: Connecting to sqlserver2008 - DBD::Sybase connectivity and unixODBC issue by venu_hs
in thread Connecting to sqlserver2008 - DBD::Sybase connectivity and unixODBC issue by venu_hs

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