well, I have the oracle 10.2.03 client installed on the machine. (that's what I meant by , oracle client is installed)
Now I am able to install the DBD::ORACLE module. Thanks for the help. But I have new set of problems.
I am trying to run the perl script and it is throwing new set of errors.(given below) 

"The procedure entry point Perl_Glookhook_ptr could not be located in 
+the dynamic link library perl58.dll"

install_driver(Oracle) failed: Can't load 'C:/Perl/site/lib/auto/DBD/O
+racle/Oracle.dll' for module DBD::Oracle: load_file:The specified pro
+cedure could not be found at C:/Perl/lib/DynaLoader.pm line 230.
 at (eval 3) line 3
Compilation failed in require at (eval 3) line 3.
Perhaps a required shared library or dll isn't installed where expecte
+d  at db_access_pr.prl line 2

[download]
I have added Oracle's 10.0.2 bin dir to PATH variable in the machine . Also I have setup ORACLE_HOME environment variable to point to this bin directory.

In reply to Re^4: issue with dbd-oracle installation on win32 by Anonymous Monk
in thread issue with dbd-oracle installation on win32 by Anonymous Monk

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