[Nationalists] insinuated, for instance, that other parties had showered particular favours on Muslims voters—who in fact are generally worse off than their Hindu compatriots.
Note how Fake News will use any fact to blunt the truth.
Truth: other parties had showered particular favours on Muslims voters
Fake News sauce: —who in fact are generally worse off than their Hindu compatriots
Whether Muslim voters are better or worse off is not the question. Hindus are aggrieved by the fact that Muslims get special treatment. It’s a fact that Muslims get special treatment by the Government of India (for example, the government pays for the Muslim Hajj to Mecca.) But Fake News wants things to stay that way, so it tries to blunt the fact with irrelevant nonsense intended to make the reader feel sympathetic to Muslims.