“Once the services of a work-charged employee have been regularized, there appears to be hardly any logic to deprive him of the pensionary benefits as are available to other public servants under Rule 3.17 of the Rules. Equal protection of laws must mean the protection of equal laws for all persons similarly situated. Article 14 strikes at arbitrariness because a provision which is arbitrary involves the negation of equality. Even the temporary or officiating service under the State Government has to be reckoned for determining the qualifying service. It looks to be illogical that the period of service spent by an employee in a work-charged establishment before his regularization has not been taken into consideration for determining the qualifying service. The classification which is sought to be made among Government servants who are eligible for pension and those who started as work-charged employees and their services regularized subsequently, and the others is not based on any intelligible criteria and, therefore, is not sustainable at law. After the services of a work charged employee have been regularized, he is a public servant like any other servant. To deprive him of the pension is not only unjust and inequitable but is hit by the vice of arbitrariness and for these reasons the provisions of sub rule (ii) of Rule 3.17 of the Rules have to be struck down being violative of Article 14 of the Constitution.”