India, Nov. 26 -- Arbitrary actions by China are "most unhelpful" towards efforts being made by both countries to build mutual trust and normalise bilateral ties, the ministry of external affairs said on Wednesday, referring to the recent detention of an Indian citizen from Arunachal Pradesh at the Shanghai airport by Chinese authorities who declared her Indian passport invalid, claiming the north-eastern state was part of Chinese territory.

"Arbitrary actions by China involving an Indian citizen from Arunachal Pradesh are most unhelpful towards efforts being made by both sides to build mutual trust and understanding, and gradually move towards normalisation of bilateral relations," MEA spokesperson Randhir Jaiswal said at a weekly media...