Deep Rail Nirman Pvt. Ltd. started the telecommunications with simple line wire communications for Railways Safety Block and operation control circuits. Deep Rail Nirman Pvt. Ltd. continued to diversify in new areas of telecommunication technology to suit developments in Railways. With introduction of railway Electrification Deep Rail Nirman Pvt. Ltd. look up main line underground amoured and screened cable suitable for long distance circuits on 25KV AC electric traction. Further diversified in Optic fiber and Radio wireless systems including wide area and local area networking, GSM systems and Mobile Train Radio. Deep Rail Pvt. Ltd. executed telecommunication works not only for the Indian Railways but also for other major Private Telecom Service providers in creating their networks.