Consider the following statements regarding the treaty of Allahabad 1765.
1. Treaty was concluded between Robert Clive and Mughal ruler Shah Alam ll .
2. Nawab of Awadh surrendered Allahabad and Kara to Emperor Shah Alam ll .
3. Robert Clive annexed Awadh .
4. Mughal ruler granted diwani of only Bengal and Bihar region to the East India company.
Which of the above statements is /are not true ?