Which pair is incorrect?

Which pair is incorrect? 
a-1
b-2
c-3
d-4
The High Court at Calcutta, West Bengal was formerly known as the High Court of Judicature at Fort William. It was established on 1st July, 1862 under the High Courts Act, 1861. The High Court at Calcutta, West Bengal was formerly known as the High Court of Judicature at Fort William. It was established on 1st July, 1862 under the High Courts Act, 1861. Sambhunath Pandit was the first Indian to assume office as a Judge of Calcutta High Court on 2nd February, 1863. Jyotirmoy Bhattacharya asumed office as the Acting Chief Justice of Calcutta High Court on 25th October, 2017.
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