The takeover of India, creating the British Raj, was the first step to controlling India. After the 1857 uprising, the British rewarded those who had not joined in the rebellion.
It was also felt that both the princes and the large land-holders, by
not joining the rebellion, had proved to be, in Lord Canning's words,
"breakwaters in a storm". They too were rewarded in the new
British Raj by being officially recognised in the treaties each state
now signed with the Crown. At the same time, it was felt that the
peasants, for whose benefit the large land-reforms of the United
Provinces had been undertaken, had shown disloyalty, by, in many
cases, fighting for their former landlords against the British.
Consequently, no more land reforms were implemented for the next 90
years: Bengal and Bihar were to remain the realms of large land
holdings (unlike the Punjab and Uttar Pradesh).
Lastly, the British felt disenchanted with Indian reaction to social
change. Until the rebellion, they had enthusiastically pushed through
social reform, like the ban on suttee by Lord William Bentinck. It
was now felt that traditions and customs in India were too strong and
too rigid to be changed easily; consequently, no more British social
interventions were made, especially in matters dealing with religion.
The British themselves adopted a "carrot and stick" approach in
recognition of India's support during the war and in response to
renewed nationalist demands.
and created the Government of India Act 1919 to try to appease the Indians with a diarchy.
In WWII, the Cripps Mission was launched and failed as well.
The Cripps mission was an attempt in late March 1942 by the British
government to secure full Indian cooperation and support for their
efforts in World War II. The mission was headed by Sir Stafford
Cripps, a senior left-wing politician and government minister in the
War Cabinet of Prime Minister Winston Churchill. Cripps was sent to
negotiate an agreement with the nationalist leaders, speaking for the
Hindus , and Muhammad Ali Jinnah, speaking for the Muslims. Cripps
worked to keep India loyal to the British war effort in exchange for a
promise of full self-government after the war