Dear Ranjan,
The subject heading of your post is "HR Policy". You have used singular noun of policy and not plural. Was this grammatical mistake or you mean figuratively?
To handle employees of the company, you cannot have just one policy. You need to have whole lot of policies like policy on recruitment, training, promotion, performance etc. Therefore, please clarify what you need exactly.
Earlier I had given reply to similar post. You may click the following link to know more about employee policies:
https://www.citehr.com/523632-comple...ml#post2221988
Thanks,
Dinesh Divekar