It's paranoid delusions if there are no basis to her beliefs.
Be on the lookout for any reactions to internal stimuli like she is seeing or hearing things.
If this has been going on for a long time I'd reccomend seeing a doctor. I've seen patients improve after medications. But I've also seen...
Sounds a lot like persecutory delusions which meets one of the Dsm5 criteria.
Is her thinking disorganized?
Your sister will need help if it is schizophrenia so get a formal diagnosis.
You can call emergency if the hospital has a mental health ward. There are medications that can assist with psychosis but they have many side effects and the cure might be worse than the illness. They can be given in a depot and one injection lasts for months to ensure compliance.
If your...
New recruit Indian soldiers and police are lean and fit.
After a few years of fixed employment they become soft and fat.
Kick them out before complacency kicks in
The Indians in India are so different to the ones here in Australia. At the hospital where I work the Indians are some of the best and most capable people I know.
Of course Vietnam will be a perfect partner. Vietnam is basically a poorer, more violent and ghetto version of China.
Start a miniature belt and road initiative called the Jungle and Bush initiative.