Over the years Puncom has successfully executed a large number of projects for major clients like Railways, PGCIL, Gail, BSNL, state electricity boards etc.It has in the process developed extensive strengths and experience for handling large and complex multitechnology projects covering wide domains of optical, radio, networking, operations etc.

For Railways, PUNCOM has supplied PDH/SDH add drop multiplexers which are installed on various routes of railways to cater to their train control communication requirements. It  has also established a nationwide optical backbone for broadband services using STM16 SDH equipment from Alcatel for RAILTEL project.

Power Grid Corporation has deployed a nationwide communication network for system coordination and control. As part of this project, PUNCOM has provided voice and data communication over 66/132/220/440KV power lines connecting remote substations to state level load and dispatch centers and further to National control and monitoring centers by installing  PLCC and PABX equipments in their network. Similar projects have also been implemented for state electricity boards and regional authorities.