Under which British Act was the provision to establish a Federation of India concession of Governor’s provinces and Princely states made?

Under which British Act was the provision to establish a Federation of India concession of Governor’s provinces and Princely states made? Correct Answer Government of India Act 1935

Government of India Act 1935 provision for the establishment of a "Federation of India", to be made up of both British India and some or all of the "princely states".

Related Questions

Which Act provided for the establishment of an All India federation at the centre consisting of the provinces of British India and the princely states?
Which of the Act made the governor of Bengal as Governor General of India?
Which of the following Government of India Act introduced the diarchy system in the provinces of India?
Which of the British Acts provided for the establishment of All India Federation at the centre ?
Who had strongly advocated the policy of abolishing princely states in free India?