This upgradation of the system from 'IRB 2.2. To RBM 5.3.7' will ensure transparent billing system and better revenues, it said.
The project also involved a hardware platform change from HP Unix to IBM AIX and migration of all data from the legacy system.
This upgrade will enable Nawras to improve customer experience and as part of their drive, increase efficiency and reduce costs.
"We were delighted to have Tech Mahindra - our long term partner - to take on this critical project. This successful upgrade vindicates our decision to go with Tech Mahindra and they were able to handle all the technical challenges efficiently," Abdulaziz Jaafar, Director - Information Technology, Nawras, said.
"Nawras is one of our strategic accounts in the MEA and we are proud of the trust they have placed in us. The enablement of an upgrade in a record time frame and ensuring customer delight makes us a partner of choice," said GirishBhat, Head - Telecom, Middle East & Africa, Tech Mahindra.
"Tech Mahindra has a well-established strategy for the Middle East and Africa region.
"Apart from other countries we are growing in Oman and have been serving its enterprise, public sector (government) and Telecom customers effectively for the last decade.
"A strong presence of 50-plus associates onsite, and with a robust offshore support system, Tech Mahindra services customers across all verticals and is committed to contribute to their growth," the company said.
Tech Mahindra is a USD 2.7 billion company with 83,000 professionals across 49 countries, helping over 560 global customers including Fortune 500 companies.