In the meantime, a royal letter was received from the Maharaja Ranjit Singh, ruler of Sikh Empire in Punjab, addressed to King Rajendra. The Nepalese court seized this opportunity to re-establish diplomatic contact with Punjab as well as other states such as Burma and Gwalior. In April 1835, Bhimsen also hatched a plan to make a state visit to Britain, hoping to force Britain to acknowledge the sovereignty of Nepal; but since he could not make the visit himself, his nephew Colonel Mathabar Singh Thapa was chosen as the representative of Nepal, bearing a few gifts and a letter from King Rajendra addressed to King William IV. The idea was initially received favorably by Hodgson as well as the Governor-General, who hoped that the mission could increase the trust between the two nations. In this process, Mathabar Singh was promoted to Chota General; his brother, Ranbir Singh, the governor of Palpa, was made Full General; and Mathabar's nephew, the sixteen-year-old Sher Jung Thapa, was made Commanding Colonel. Thus, Bhimsen managed to consolidate his military powers. Both Rajendra and Samrajya Laxmi were also pleased with this plan, and on 1 November 1835, Bhimsen was conferred the title of Commander-in-Chief. On 27 November 1835, Mathabar Singh left Kathmandu with a retinue of two thousand men, including 200 officers and 600 soldiers, for London via Calcutta.