Dear Nikhil Kadu,
Each company follows different patterns of Voluntary Retirement Scheme (VRS). To name a few:
1. A lump-sum payment which has no linkage to years of service or the remaining period of service.
2. Wages/26 x Number of days (For VRS) x Completed service.
3. Wages/26 x Number of days (For VRS) x Remaining Service.
You have to first decide your company's capacity to pay. In my opinion, you also have to obtain permission from the Income Tax department for promoting the scheme (please ask your Finance guy to check this out).
Also, try to survey the market to find out what industries have offered in the neighborhood, as generally, workmen compare this. You also have to source information through internal reliable sources (grapevine) to assess the expectations of the workmen. This is needed to moderate them if their expectations are quite high.
A word of caution, you may also lose valuable employees in the process.
Generally, VRS is applicable to employees who have served at least 10 years of service (if my memory is correct).
It will also be wise to enter into a tripartite settlement 12(3) under the Industrial Disputes Act on the terms of settlement. But beforehand, it will be beneficial to enter into a bipartite 18(1) settlement under the ID Act. This will only give you confidence to approach the Labor office for arriving at a 12(3).
Please note that strictly speaking (As per law), you are not supposed to fill up a vacancy created by VRS. In other words, VRS is promoted to remove excess workforce that is not required by the industry.
Try to find out answers to these queries, and you will be able to arrive at a solution.
M.V. Kannan