LUCKNOW, Sept. 5 -- A case of large-scale fraud, wherein medals ordered for official felicitation ceremonies turned out to be made of copper instead of silver, has come to light under the Northern Railway (NR) zone of Indian Railways, officials said.

While the fraud was unearthed at the General Store Depot (GSD) at Alambagh in the Lucknow division of NR, the discovery has given rise to suspicion about the genuineness of medals worth approximately Rs.1.3 crore meant for various depots across NR, the officials said.

The fraud detected at the Alambagh depot alone was to the tune of Rs.30-40 lakh, an official familiar with the matter said.

An FIR was lodged against the Indore-based supplier and its Mumbai based associate, which was authori...