The correct options are
B He subdued the Palegars and disbanded their armed forces.
C He conducted an intense survey to identify cultivators and their lands.
D He urged the peasants to purchase seeds, fix old wells or to dig new ones, improve their bullocks.
As there was an opposition to British rule by Palegars, Thomas Munro had to begin by subduing Palegars. A complete survey was conducted to identify cultivators, learn the land. Before the introduction of the new system, he took measures to develop agricultural requirements like wells, bullocks, seeds, to name a few.