Top politicians in India-administered Kashmir were put under house arrest. Days after thousands of troops were sent to the disputed region.
Public gatherings were banned and reports state that mobile networks and the Internet were restricted.
Last week, the authorities also asked tourists and Hindu pilgrims to leave the country. They referred to a "terror threat" against an annual pilgrimage to a large shrine.
It is unclear what hides behind the recent measures that have led to tensions.
In the early hours of Monday, two former Prime Ministers of Indian-administered Kashmir, Omar Abdullah and Mehbooba Mufti, were put under arrest.
No explanation has yet been given, but it is speculated that Delhi may be willing to withdraw Kashmir's special privileges, such as a provision preventing people from buying land outside the state.
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Previously, arrested politicians and other leaders in a resolution had warned Delhi of "consequences" if it "changed the special status of Kashmir." [1
Such a move would cause trouble and escalate tensions with Pakistan. India and Pakistan both claim the entire Muslim majority of Kashmir, but only control parts of it.
In addition to the evacuation order following the terrorist warnings from the authorities, there have been reports of skirmishes over the de facto border in recent days. India accuses Pakistan of supporting militant groups based in Kashmir, which Pakistan denies.
The influx of troops, the terror warnings and the speculation about the status of Kashmir have alarmed the inhabitants of the Indian-ruled region. Many of them stood for hours in front of petrol stations, supermarkets and ATMs.
For the last time comparable restrictions Kashmir was sentenced in 2016 after the murder of a popular rebel leader for months of street protests, which claimed dozens of deaths.