SGN Telecoms Ltd (earlier widely referred to as SGN Cable Industries was formally created and deployed as a legal entity in 1986 as a private limited company and was converted into a public limited company in Jan.'93. It was promoted by Davinder Singh and Surinder Singh. In May '87, the company started manufacturing aluminium conductor steel re-inforced (ACSR) conductors with an installed capacity of 1000 km pa in various diameters at SAS Nagar, Punjab. In Aug.'93, the company became a partner in SGN Industries, a partnership firm, which is engaged in the manufacture of PVC power and control cables with an installed capacity of 1500 km pa. In 1994, SGN Industries was taken over by the company.

The company has successfully engineered 12 pair data cables which are being utilised by the Government of India, Ministry of Defence, Research and Development Organisation, Interim Test Range (ITR), Balasore, for transmission and reception of data and voice for launching of missiles including the prestigious Prithvi and Agni. Its products are being sold directly to various state electricity boards.

In 1995-96, the company undertook an expansion programme to enhance the capacity of PVC power cables from 1500 km to 2000 km pa and that of the ACSR conductors from 1000 km pa to 2300 km pa. It also proposed to manufacture XLPE cables with an installed capacity of 700 km pa and data cables with an installed capacity of 200 km pa. It came out with a public issue in Mar.'96 to part-finance the project.