Hello Mahesh -
What you ask is not a trivial thing. Core file analysis is a highly technical topic and "tips and tricks" are simply not what it's about.
Here are some resources you may consider:
"Panic! Unix System Crash Dump Analysis" by Drake, Brown
Solaris and other Unix variants offer an interactive-style variant of adb called crash.
A crash summary analysis tool called iscda.sh is also available at various sites. iscda.sh is a shell script that runs some common adb and crash routines to produce a general core report.
On docs.sun.com in the Solaris 8 Administration, there's a PDF guide to using mdb, the modular debugger tool that will eventually replace adb and crash in Solaris.
If you're familiar with the various tools that come with a compiler, you might use dbx for starters.
Hope this helps,
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Michael Ernest, co-author of:
The Complete Java 2 Certification Study Guide