India, Nov. 24 -- Chinese officers refused to recognize her Indian citizenship, saying "Arunachal Pradesh is part of China," and took her passport, blocking her flight to Japan despite a valid visa.

A woman from Arunachal Pradesh has alleged that Chinese authorities detained and harassed her at Shanghai Pudong Airport after refusing to accept her Indian passport during a transit stop.

Pema Wang Thongdok, in posts on X, said immigration officials held her for "18 hours" on November 21, claiming her passport was "invalid" because her birthplace, Arunachal Pradesh, was "part of China."

Thongdok was travelling from London to Japan with a three-hour layover in Shanghai when the incident occurred.

She wrote on X, "I was held at Shanghai air...