How I see it (and so do many others) is that this showed BJP that they won’t get away with anything and everything. That their religious politics is getting old. People want jobs, and growth.
Many thought that defeating BJP is simply impossible. If you followed the Indian media, you’ll know that Modi was portrayed as this irreplaceable leader. Many voted for BJP simply because they thought that they had no other option. This election showed them that it’s not true, that BJP can be defeated. If not anything else, we have a much stronger opposition now. BJP will have to think twice before making stupid decisions.