was followed by Railway Board's letter No.E(P&A)/I-2010/RT-2 dated 24.9.2010, by which the benefit under the Liberalised Active Retirement Scheme has been extended to Gangman/Trackman, subject to fulfillment of identical conditions stipulated for other safety categories. Later, by Railway Board's letter No.E(P&A)/I-2010/RT-2 dated 28.6.2011, permission has been granted for expansion of the scheme to those in the safety categories mentioned in the Railway Board's letters dated 11.9.2010, with a Grade Pay of Rs.1,900/-. However, the eligibility conditions for safety staff with a Grade Pay of Rs.1,900/- shall be the same as those for Drivers, i.e., 33 years of qualifying service and within the age group of 55-57 years. The eligibility conditions in the case of Gangmen and other safety categories in the Grade Pay of Rs.1,800/- shall remain as 20 years of qualifying service and within the age group of 50-57 years. Still later, by Railway Board's letter No.E(P&A)/I-2010/RT2 dated 3.1.2012, the post of Trolleyman of Departments other than Civil Engineering has also been included in the list of safety