Section 15(5) in The Bureau of Energy Efficiency (Terms and Conditions of Service of Employees) Rules, 2017
(5)An employee of the Bureau holding a post equivalent to Group `Ç' post, in the Central Government, may, by giving notice of not less than three months in writing or three months' pay and allowances in lieu of such notice to the competent authority, retire from Bureau's service after he has completed thirty years' service.
