“As a rule, appointment in the public services should be made strictly on the basis of open invitation of applications and merit. No other mode of appointment nor any other consideration is permissible. Neither the Governments nor the public authorities are at liberty to follow any other procedure or relax the qualification laid down by the rules for the post. However, to this general rule which is to be followed strictly in every case there are some exceptions carved out in the interests of justice and to meet certain contingencies. One such exception is in favour of the dependants of an employee dying in harness and leaving his family in penury and without any means of livelihood. In such cases, out of pure humanitarian consideration taking into consideration the fact that unless some source of livelihood is provided, the family would not be able to make both ends meet, a provision is made in the rules to provide gainful employment to one of the dependants of the deceased who may be eligible for such employment.”