Which Government of India Act/charter Act generated the post of Governor-General of India?

Under this provision, Lord William Bentinck became the primary Governor-General of the Asian nation. It is underprivileged the Governors of urban centers and Madras of their legislative powers. For the primary time, the Governor-General’s Government was referred to as the ‘Government of India’ and his council because of the ‘India Council’ in 1858.