TSEC- Technical Specification Evaluation Certificate

RDSO- Research Designs and Standards Organization

EIL- Engineers India Limited

DGQA- Directorate General of Quality Assurance (MoD)

UL/Intertek- Global product testing and safety certification

Telcordia certificate

TUV

Power grid corporate of India

GAIL India

RATEL, Serbia- For optical fibre cables

WAVIN NOVOTECH, France- Micro fibre cable blowing