"Special Products Group" in Keltron Equipment Complex, Karakulam, have been manufacturing and supplying a wide range of Indigenous products, for Indian Naval Ships and submarines, since the 1980s. These Equipment are fitted onboard Indian Naval ships and submarines and are fully indigenously manufactured 'Military grade' products, subjected to stringent Quality and performance scrutiny, prior supply.

This indigenous availability of products results in huge foreign exchange saving for the country, which otherwise was getting imported at much higher cost. The Equipment and systems have been manufactured either with the technology developed in-house or with the technology adapted from NPOL or from various other research organizations like CDAC. 

Keltron have obtained Industrial Licence issued by the Government of India to manufacture Defence products such as Sonar systems, Combat systems, Command & control systems and Navigational Equipment.

Keltron launched the ID Card Project (IDCP) in 1991 seeing an opportunity in the decision by the Election Commission of India to provide Electoral Photo Identity Cards