The correct answer is: A. 1st November, 1966
The Shah Commission was set up by the Indian Government on 1st November, 1966 to divide Punjab and create the state of Haryana. The Commission was headed by Justice J.C. Shah. The Commission submitted its report on 31st December, 1966. The report was accepted by the Government and the state of Haryana was created on 1st November, 1966.
Option B is incorrect because the Shah Commission was set up on 1st November, 1966, not 22nd April, 1966.
Option C is incorrect because the Shah Commission submitted its report on 31st December, 1966, not 7th November, 1966.
Option D is incorrect because the state of Haryana was created on 1st November, 1966, not 23rd April, 1966.