Hundreds of motorcycle-borne SUMA activists shouting anti-China slogans joined the rally which started from Akashdeep and culminated at Raj Bhawan.
The Union also submitted a single-point memorandum to state governor Lt Gen (Retd) Nirbhay Sharma.
Later talking to reporters, Union's President Biri Tabing said, "Arunachal Pradesh is an integral part of India and will continue to remain so. Every inch of Arunachal's soil belongs to India and China should stop making such move which is detrimental for the people of the state."