Leave – A Grade Nursing Course – Petitioner was allowed to undertake higher studies with the clear stipulation that she will not be extended study leave for undergoing the Nursing Course in question but will be given leave of the kind due – It is not disputed that the leave of kind due as promised to the petitioner, was given – Once, at the time of availing a benefit, the petitioner agreed to the terms and conditions, the same cannot be challenged by the petitioner and that too after approximately 30 years of availing the said benefits.