The difference
Why hiring professionals takes a different approach
You can watch a welder work and know within an hour whether they're any good. You can't do that with a planning engineer. What you're paying for is years of judgement, and that only shows up in conversation and in what past managers say.
Then there's the paperwork. Degrees often need attesting in India and again by the embassy. Some jobs also need a Gulf licence before day one. If a step gets missed, a good candidate can sit at home for weeks.
India isn't short of engineers or nurses, and many already have Gulf experience. Finding the few who fit your brief is the hard part. Most of our time goes there.