Besides, it’s not like these scammers are paying taxes to the Indian government, so they don’t have any national incentive to facilitate scammers. Tax compliance in countries like India, outside the first world, is very poor. Though the article mentions that Indian authorities are cooperating with Canadian officials, it needs to be understood that this cooperation isn’t based on any incentive structure, other than civilised societies need to crack down on crime. Crime in Canada is a low priority for Indian officials, just like I’m sure it’s the other way around.
Finally, Canada doesn’t even feature in the top 15-20 trading partners for India, last time I checked, so I don’t know what punitive incentive can be hoped for here. If you need a solution, it would be more productive to approach from a more pragmatic, cooperative point of view, rather than being all high and mighty and taking a carpet bombing style approach that affects legitimate business as well. Or, you could do that but it wouldn’t even matter.
Edit: I’d like to add that every day there is news about people, here in India also losing their life savings to these scammers. So it would be wrong to have an impression that authorities and citizens of this country take pleasure in people from richer countries being scammed. I’ve old, not so tech savvy parents myself, who I realise are pretty vulnerable to this evil.