So if India hadn't been colonised it would have industrialised in the 1840s, remained competitive in world trade, and never have had any internal political troubles and never ever jail opponents of the mughal empire? Somehow I doubt that.
The geographic borders would be different, that's about it.
Let's not forget that British trade policy was designed to extract raw material cheap from India, and then dump finished goods at low rates, and remove indigenous industries.
The sub continent is like Europe. If allowed to be on its own, people would have modernized and gotten on with the business of making money.
So why is that hard to imagine?