The correct answer is Government of India act, 1935.
Salient Features of the Act of 1935:
It consisted of 321 sections and 10 schedules.
It partly came into operation in 1936 when the general elections in the country were held on the lines prescribed by it.
It was fully enforced in April 1937.
The Act was largely disappointing because it did not hold out assurance about granting Dominion Status.
Various Provision
1. Provincial Autonomy
2. All India Federation
The Act of 1935 abolished dyarchy at the Provincial level and introduced it, at the Centre.
Provision for the establishment of Federal Court
Increase in the Size of Legislatures and Extension of Franchise
Division of Subject: three lists the Federal List, the Provincial List and the Concurrent list. The Federal list included 49 subjects, the Provincial list54, and the Concurrent list 36.