HR Policies - streamline the entire process and system - where i should start?

I have recently joined new company after a long gap. the company where i have joined is running like an old firm and there are no policies as such. i want to streamline the entire process and system of HR. Need appropriate guidance from where i should start and how to implement HR system.

Hi,
Kindly go through the attached file.
Hope it will be useful.

Thanks you so much Yogapriyaji for sharing useful link...