AutoCAD is a basic software which used in every organisation government and non gorment if you are interested in CAD software then learn <a href"   https://www.tecforyou.in/2018/08/most-used-mechanical-software-in-india.html?m=1"> CATIA for 3d modelling and MATLAB for analysis<a/>

AutoCAD is the most popular software used my professionals with ME degree. If you are interested in pursuing your career as a Design Engineering, you can learn one of the design software like AutoCAD, CATIA, PTC Creo, SolidWorks, etc. In case you are interesting in analysis / simulation, you can go through some short courses in analysis software like Ansys, MoldFlow, Fluent, etc.

Good Luck.