My boss is refusing to give me my raise and is even threatening to suspend me. I’ve been working at this PSU as a non-executive staff member since 1996. What legal steps can I take to protect myself?

You can approach the concerned authorities within the PSU, such as the grievance redressal committee or the human resource department, to lodge a complaint. You can also consider seeking legal advice from a lawyer specializing in labor law to explore options like filing a complaint with the labor court.