Early in 1848, Sir Henry Lawrence, who was ill, departed on leave to England. Although it was assumed that his younger brother John Lawrence would be appointed in his place, Lord Dalhousie, who had replaced Lord Hardinge as Governor-General, appointed Sir Frederick Currie instead. Currie was a legalist, based in Calcutta, who was unfamiliar with military matters and with the Punjab. While the Lawrences were comparatively informal and familiar with the junior officers who were Residents and Agents in the various districts of the Punjab, Currie was stiffer in manner and was inclined to treat his subordinates' reports with caution. In particular, he refused to act on reports from James Abbott, the Political Agent in Hazara, who was convinced that Sardar Chattar Singh Attariwalla, the Sikh Governor of Hazara, was actively plotting a rebellion with other Sirdars.