Hey, thanks for your reply.
I could get the base kernel "kernel-2.6.18-194.el5.i686.rpm" from the link you provided, but i am looking for the exact kernel binary. Can you please help me in locating the exact kernel binary - kernel-2.6.18-188.8.131.52.3.el5.
The kernel you are looking for is a kernel patched by Oracle. It is not the standard RHEL 5.5 based distribution kernel.
It is available on the OEL 5.5 installation DVD iso for x86 or x86_64. You can download the iso image from https://edelivery.oracle.com/linux
Open the DVD and look inside the Server/oracle_updated directory and you will find:
kernel-2.6.18-184.108.40.206.3.el5.x86_64.rpm among other 0.0.0.3 patches for oracleasm, ocfs2, etc.