Ministry is not governed by the Payment of Gratuity Act. Therefore, the liability is on the contractor only. Since you have not worked continuously for 5 years, your chances of getting gratuity from the contractor is also very remote. There are court verdicts allowing gratuity to an employee with service of 4 years and 240 days in the fifth year, yet these are all interpretations of law. You can also apply for gratuity through the Labour Officer.
Madhu.T.K
Madhu.T.K