Dear Priya
Please don't get rattled when people point out that HR differs from sector to sector or some specialized skill is required for a particular sector.
While there is some truth in it, to some extent, especially when we think of HR interventions, employee engagement, HRIS, incentive and compensation management etc etc.; at the basic level all are same.
HRM is basically management of employees and all employees in any sector are humans :) What distinguishes them are their educational and skills level, their aspirations and expectations at economic level, what would make for a motivated and engaged employee etc. etc.
And yes, there are specific Acts and rules for certain sectors.
However, at the very basic level; when you intend to set up an HR deptt., the assignment essentially remains the same, irrespective of which sector you are in. The sectoral differences and their specialities will kick in later in the organizational HR life cycle.
Since you already have the experience of setting up an HR deptt. albeit in a different sector; you are well advised to leverage on your acquired experience.
Also, study the work processes of the new company, employees profiles and job-descriptions, man-power planning and its linkage with the vision, mission and strategies of the company and other relevant information.
On the RHS of this page you will find links and pages of Related Information. Browse through them and enlighten yourself.
In case you still find yourself in trouble, please revert back. Please do not expect anyone to do it for you; or look for a ready-made packaged solution. All organizations are different and unique, just like human beings. Moreover, this is not a one-shot job, but a continuous process. you will have to keep redrafting, revising and refining it till it serves the purpose of your company; rather than just simply look good on paper.
You will need others in different departments, to collaborate with you. There will be several bottle-necks and minor hiccups as you proceed through un-charted water. Wishing you all the best in your journey.
Warm regards.