Hi Rakesh,

1. Now a days , you tube portal has huge number of videos uploaded by experts which would be helpful in learning above mentioned softwares.
2. If you have these software then, manual PDF are present along with them which immensely helpful in learning software.
3. There are huge of companies/consultancies which have experts working in these software if you could identify some of them and get chance to be intern there then , along with learning softwares you could also contribute and learn through real projects.

I hope this was helpful.
Pls feel free to contact if you have any further query.

Hello Rakesh,

You can easily download the applications/softwares by searching on google. Various softwares will be available in full access while some of them will be available in trial period and you would need to pay in order to get full access. You can check the below mentioned links for the softwares:

CAD: https://www.autodesk.in/solutions/cad-software

STAAD: https://www.bentley.com/en/products/product-line/structural-analysis-software/staadpro

Revit: https://www.autodesk.com/products/revit/overview

All the best!