Which one of the following statements about the Treaty of Allahabad is

Which one of the following statements about the Treaty of Allahabad is NOT correct ?

It was signed in the year 1765
The Mughal Emperor by a farman formally granted the Diwani of Bengal, Bihar and Orissa to the East India Company
Awadh was restored to its Nawab on payment of Rs. 50 Lakhs
Banaras and the Surrounding tracts were detached from Awadh and handed over to Shah Alam II
This question was previously asked in
UPSC CAPF – 2017
The statement “Banaras and the Surrounding tracts were detached from Awadh and handed over to Shah Alam II” is NOT correct regarding the Treaty of Allahabad.
The Treaty of Allahabad was signed in 1765 after the Battle of Buxar. Under this treaty, the Mughal Emperor Shah Alam II granted the Diwani (right to collect revenue) of Bengal, Bihar, and Orissa to the East India Company. Awadh was returned to Nawab Shuja-ud-Daulah on payment of a war indemnity.
Statements A, B, and C are correct provisions of the Treaty of Allahabad. Specifically, Kara and Allahabad (not Banaras) were detached from Awadh and given to the Mughal Emperor Shah Alam II. Banaras remained under the control of the Nawab of Awadh, although it was under the Raja Chet Singh who was a tributary.