Mr Deshpande has given all details. However I am just adding a few more minute points.
1. Complaint letter from concerned describing the incident
2.Preliminary investigation and then a decision to proceed with disciplinary action
3. Charge sheet preparation
4. Serving of charge sheet/show cause notice
5. Obtain reply from the employee in writing
6. assess the reply and inform the employee stating that the reply is not satisfactory and hence enquiry is being initiated
7. Appoint an Enquiry officer
8. Inform the employee regarding appointment of Enquiry Officer and infor the first date
9. Let the Enquiry officer complete the Enquiry
10.Give the employee an opportunity to be represented by his coworker or if Standing Order provides, Union Represntative
11.Give reasonable opportunities for producing witness and cross examine Managements witnesses
12. Enquiry officers report
13. Examine the report and the Authority to pass a speaking order saying that he has examined the report and agree with the findings and pass a punishment
14. Notmal punishments like suspension warning etc may not require second show cause notice If it is dismissal, second show cause notice specifying the punishment must be given
15 Punishment should be given in writing after the reply in case of dismissal