Punjab Communications (PCL) was incorporated in Jul.'81 by the Punjab State Electronics Development and Production Corporation to manufacture direct-to-line multiplexing equipment. Later, it diversified into the production of pulse code modulated multiplexers, trans multiplexers, voice frequency telegraphs, rural automatic exchanges, digital VHF radios, etc. The major users of these products are the DoT, Railways, Defence, state police organisations, ONGC, VSNL, etc. The company has tied up with ECI Telecom, Israel for SDH range of products and with Reliance Tech Com, US, for a joint venture. PCL product range includes Line Transmission equipment consisting of 2 Mb/s primary Multiplexer, Higher Order Multiplexer, Optical Line Terminating Equipments, Power Line Carrier Communications, DTL FDM, Radio equipments consisting of 400 to 600 MHz & switiching equipments from 64 lines to 40000 lines. PCL has renewed thrust on the areas of equipment manufacturing like Optical Fibre equipments, Electronic Switches, Vsat Equipments. It has introduced STMs & Optimux for Railways and is also planning to introduce STMs & SDH-DLC in BSNL in the near future. Puncom has tied up with Chinese company and made a joint bid for supplying CDMA equipment to BSNL. The bid is under evaluation. PCL major client Railtel has planned to create OFC cable of about 37000 KMs in India,out of which 7900 Kms of OFC cable was already commissioned and 4700 Kms has been laid. The work for 11500 kms is in progress and has future plans to create remaining 13000 Kms of OFC.