JOIN USChina on Monday strongly objected President Ram Nath Kovind's visit to Arunachal Pradesh, saying India should refrain from "complicating" the border dispute when bilateral relations are at a "crucial moment".
President Kovind visited Arunachal Pradesh on Sunday.
"The Chinese government never acknowledged the so-called Arunachal Pradesh and our position on the border issue is consistent and clear," Chinese Foreign Ministry spokesman Lu Kang told media when asked about Kovind's visit to Arunachal Pradesh, which China claims as Southern Tibet.
China routinely objects to any senior Indian officials' visit to the area.
India has dismissed Beijing's objections, maintaining that Arunachal Pradesh is an integral part of the country and Indian leaders are as much free to visit the state as they are to any other part of the country.
Both countries are "in the process of settling this issue through negotiation and consultation and seek to reach to a fair and reasonable solution acceptable to all", Lu said.
Pending final settlement all parties should work for peace and tranquility, he said.
The Line of Actual Control (LAC) between India and China stretches 3,488 km.
On November 6, China had raised objection to Defence Minister Nirmala Sitharaman's visit to the border areas of Arunachal Pradesh.
Both sides held 19 round of talks by special representatives to resolve the boundary dispute.
The 20th round is expected to be held next month in New Delhi, though dates have not yet been announced.
National Security Advisor Ajit Doval and his Chinese counterpart Yang Jiechi are the designated special representatives for the boundary talks.