Dear Sivakumar R,
By recruiting differently-abled persons, companies serve a social cause. If private companies do not come forward, these individuals have nowhere to go. Deprived of gainful employment, their near and dear ones may consider them a liability, which can be mentally tormenting.
Nevertheless, I wish you had learned the terms and phrases of the 21st century. Rather than writing "Deaf & Dump Employees Recruitment Policy," you could have written "Policy for the Recruitment of Differently-abled (or Specially-abled) Employees."
It is difficult to provide a policy for the employment of differently-abled persons. However, I can roughly suggest reserving one per 100 vacancies for these individuals. While they may not be able to work on the shop floor, you can employ them in supporting roles where they can perform desk work. You may publish an ad in the newspaper and make it viral on social media.
Before closing my reply, I wish to thank the administration of your company. Kudos to them for coming forward to serve the needy persons of society.
All the best!
Dinesh Divekar