If your company is more than 20 years old then some systems and processes must be in place. Obviously, the company did not operate in vacuum. Therefore, the pertinent recommendation is to write here what systems are in place and what addition you would like to do?
The second question is are you talking only HR processes or there is process-deficit across the departments? If yes, then is management ready to spend funds so as to bring the processes at par with professional company? Lot depends on will-power of the management!
Therefore, please clarify about your position in the company, and what is your empowerment. I say so because management with progressive mindset does not wait for 20 years to bring systems. Epiphany could have struck to them earlier also!
Its manufacturing unit, and now they are planning for an expansion of business as well as unit also. so they will need manpower and they want to make their company a professional one. The company want to create HR, Management and operation system.
All the manufaturing company have their HR & HR Rules or otherwise it is difficult to manage the show. As per the post your company is existing over 20 years. Don't you think it as miracle a company has been running since last 20 more years and is existing is also going for expanssion.
In my perception it is wise go with the track which was laid 20 years back. In what sence you felt the necessity of adopting new systems and processes. Dear fried there was not much change or anything new has come in this sphere of HR other than some feudal kind of changes.
The change in system or adoption of new policy in place of old, is nothing kind of changing dress. Any change is having its own reprocation or setbacks. It has mostly observed negetive impacts at the begining.
Only one who is acquinted with your working and system or knowledge or observing for last 20 years by any professional only can suggest good. It is not wise to suggest anything farsighting.
It would be good enough if you can suplement where you want changes & why in a tabular form so that members from the forum can guide and in the subject Mr Divekar has given lot more inputs. Hope you need to have brain storming on subject.