NA Group of Companies, through its flagship engineering entity Najam Associates, has emerged as a key player in Pakistan’s engineering, procurement, construction, and manufacturing sectors. Specializing in fluid mechanics, infrastructure piping, water sanitation, and building services, the company has developed innovative solutions for the country’s growing urban infrastructure needs. The group manufactures, supplies, and installs advanced SWI Piping Systems, including specialized uPVC spiral pipes, high-density polyethylene (HDPE), CPVC, and PPRC piping solutions designed for heavy-duty sewerage networks, municipal storm water drainage, and gas and water distribution systems.
In an exclusive conversation with Engineering Post, Director Technical Najam ul Islam highlighted the urgent need for Pakistan to adopt modern technologies to improve the efficiency and sustainability of its ageing underground infrastructure.
“Urban centres across Pakistan are facing unprecedented pressure on their water and sewerage systems,” said Najam ul Islam. “Conventional methods are no longer sufficient. We need smarter, more durable, and less disruptive engineering solutions that can be deployed quickly without affecting daily life.”
Najam ul Islam pointed to a recent landmark project executed on Karachi’s Rashid Minhas Road as a demonstration of the company’s technical capabilities. During the construction activities associated with the Bus Rapid Transit (BRT) project, a major sewerage line was damaged, creating the potential for significant traffic disruption and extensive road excavation.
Working in close collaboration with the local water board, NA Group employed advanced jacking technology to bypass the damaged pipeline without breaking the road surface.
“We successfully diverted the damaged line using jacks engineering techniques while ensuring that traffic flow remained uninterrupted,” explained Najam ul Islam. “Not a single day of road closure was required, which is a major achievement considering the scale and complexity of the project.”
According to Najam ul Islam, the project attracted considerable attention from water utility officials across Sindh, who visited the site to observe the innovative deployment process.
“The water board invited its management teams from different parts of Sindh to study the project because it demonstrated a practical and efficient alternative to traditional excavation methods,” he said.
A distinguishing feature of NA Group’s sewerage solutions is its on-site manufacturing capability. The company deploys its spiral pipes from manhole to manhole, producing the pipes directly at the project location.
“Our pipes are manufactured on-site and installed in continuous lengths between manholes,” said Najam ul Islam. “This eliminates the need for transportation and multiple joints, which significantly reduces the risk of leakage, contamination, and structural failure.”
Najam ul Islam added that the company’s spiral piping systems are backed by a 50-year warranty, ensuring long-term reliability and reduced maintenance costs.
Looking ahead, NA Group is investing in smart technologies to transform infrastructure monitoring and maintenance.
“We are currently developing a robotic inspection system equipped with advanced sensors and cameras that can travel inside sewerage pipelines,” revealed Najam ul Islam. “The robot will enable authorities to identify leakages, blockages, and structural damage in real time without the need for manual inspection.”
He believes that integrating advanced materials with digital technologies will define the future of urban infrastructure management in Pakistan. “Our vision is to create intelligent underground networks that are efficient, sustainable, and easy to maintain,” said Najam ul Islam.
