PS (Printed Serial) No’s from 1956 onward as issued by Personnel Department,
Northern Railway Head Quarters Office New Delhi.
13500/1
13500/2
13500/3
13500/4
13500/5
13500/6
13500/7
13500/8
13500/9
13500/10
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13500/96
13500/97
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13500/99
13500/100