External Affairs minister S M Krishna arrived in Beijing today on a four-day visit to hold comprehensive talks with top Chinese leaders on a gamut of issues including issuance of stapled visas by Beijing to Kashmiris and illegal construction in Pakistan-occupied Kashmir. Mr Krishna was received at the Beijing airport by Chinese protocol officials and Indian Ambassador to China, S. Jaishankar and other senior Indian diplomats. His official engagements will begin tomorrow with an address at the China Institute of International Studies, on Sino-Indian relations in the 21st century.