You're mistaken about the root cause. So say the Indian government decide that enough is enough, they offer a repatriation scheme for Indian nationals based in Oman, so that whoever needs consular assistance to return home has all that they need. We have solved the root cause!

But wait, there are still buildings needing constructed in Muscat and there are not enough local people willing to be worked long hours for poor pay. So these Omani companies begin to step up recruiting in Bangladesh and now those workers start getting treated exactly as poorly as they were before.

So did we identify and solve the root cause? No, we just shuffled around the nationality who was being abused. In an ideal world everyone who needs consular assistance can get it wherever they are based, but the root cause here is abusive employment practices, do not try to pretend otherwise.