Atul,
Good to See you are writing regularly!
Review on your Answer :
1. Good Introduction with Linking of Code of Ethics and Code of Conduct. Although You can provide definition of both in the Intro itself.
2. Clear Definition of Both Code of Ethics and Code of Conduct with Proper Examples. Good.
Scope of Improvement :
1. Question clearly asking of Distinguish between Code of Ethics and Code of Conduct and You only Provided definition, Explore multiple dimension of difference between both. Ex: Code of Ethics are wider than Code of Conducts, Code of ethics can be personal, Code of Conduct are set by organisation.
2. Provide a Tabular Difference when question clearly ask for differentiation.
3. Also mention Code of Conduct rules for Civil Servant, 1964.
4. Can Mention 2nd ARC Report on Code of Conduct and Code of Ethics.
5. Avoid using Abbreviation in the Conclusion. It is lasting impression on examiner.
Keep Writing, Keep Improving.