Kind of begs the question.

What is the benefit of a Khalistan ?

I can certainly see not having the Indian state draining away resources and capital. THat makes sense.

By why not, then, focusing on tax protests and tax preventions ?

What is that is so appealing about a Khalistan ?

The real puzzle is that, if Sikhism is dependent on Gurus for spiritual guidance, one would think the effort would be on supporting the spiritually enlightened -- or even more, improving the spiritual condition of Sikhs who lead more humdrum lives.

– Why is the Khalistan movement infamous? –

The campaign was largely considered a benign fringe movement until the early 1980s, when a charismatic Sikh fundamentalist launched a violent separatist insurgency.

Jarnail Singh Bhindranwale and his followers murdered scores of Sikh political opponents and Hindu civilians in the name of establishing Khalistan.

In 1984, they began stockpiling arms and barricading themselves in the Golden Temple, the faith’s holiest shrine in the city of Amritsar.

Bhindranwale, his top lieutenants and hundreds of Sikh civilians were killed when the government stormed the site that June, also resulting in extensive damage to the temple.

Sounds a bit like the Branch Davidians.

The most unlikely thing - Seventh Day Adventists holing up in a large shed and just generally appearing to be obstreperous.

Now, the Bhindranwale crew did the same thing.

Why on earth did the state of India send police in then ?

Sounds pointless,