Indian Railways
RAILWAY HVAC – MAIN LINE
VRDE – Vehicle Research & Development Establishment
CVRDE – Combat Vehicle Research & Development Establishment
DRDO – Defence Research & Development Organization
DGQA – Directorate General Quality Organization
DGAQA – Directorate General Aeronautical Quality Assurance
DGS&D – Directorate General Supplies & Disposals
RDSO – Research Design & Standard Organization ( Railways), CLW, DLW
RCF – Rail Coach Factory, Kapurthala and Rae Bareli
ICF – Integral Coach Factory
BIS – Bureau of Indian Standards
DOT – Department of Telecom
SRTC – State Road Transport Corporation
DMRC – Delhi Metro Rail Corporation – Consultant to all Metro Rail Corporation
IRIS – International Railway Industry Standard
RTDC – Rajasthan Tourism Development Corporation
Reputed global players like Rottem Hyundai, Siemens, CAF (Spain), BHEL, Alstom, Tata Motors, Hitachi etc.