If your employee fails to serve a grievance notice, the NIRC may possibly dismiss the grievance petition. This is because the employer hasn't had a chance to respond to the grievance and attempt to resolve it. In some cases, the NIRC could allow the employee to amend the grievance petilion https://case-law-management19353.gynoblog.com/33793597/the-basic-principles-of-latest-case-laws-on-crpc