I am a Mechanical Engineer working in Dubai. Interested to learn Autocad for Mechanical/Civil or Structural with 3D Max. Please suggest me which course will suit me best and help me grow in the field

It depends where you’re going to be working in. In any case AutoCAD will be the foundation for anything.  If you are focusing on the contruction industry, knowledge in BIM (Revit Architecture, MEP & Structure) will be the best. If you’re focusing the manufacturing industry, SolidWorks & Inventor could be the softwares to help you out in UAE market. There are other software’s like PDMS, Smartplant, Rhino, Primavera etc also in demand in the market.