koi desh khaera sesh bhaeko chhaina bhatiji... keti le sodhne prasna gareko le bhatiji bhaneko hai... nothing serious ni

You can simply say that your previous employer was a bla bla bla company (your consultancy) but you worked as a contractor to your client because your company was an IT company which would take projects across the US and send its employee (you) to those projects.
It is absolutely acceptable that you worked as a contractor.

Cheers!!!