1.Sub Inspector(Master) : 22-28 years. 2. SI (Engine Driver) : 22-28. 3. SI (Workshop) : 20-25. 4. Head Constable (Master) : 20-25. 5. HC (Engine Driver) : 20-25. 6. HC (Work Mechanic) : 20-25. 7. HC (work mechanist) 20-25. 8. Constable (Crew) : 20-25.