With reference to the treaties made by the English with native rulers of India in the 18th century, which one of the following pairs is not correctly matched ?

The Treaty of Mangalore (1784) was signed between the British East India Company and Tipu Sultan, the ruler of Mysore, following the Second Anglo-Mysore War [t4][t5]. It restored the status quo and involved the mutual restitution of prisoners and territories [t5]. Anwar-ud-din was the Nawab of Arcot who died much earlier in 1749 during the Battle of Ambur in the Second Carnatic War, and thus was not a signatory to this 1784 treaty. Other pairs are correct: the Treaty of Allahabad (1765) was signed by Robert Clive with Shuja-ud-daula of Awadh and Shah Alam II [c1][t7]; the Treaty of Purandar (1776) was signed between the British and the Marathas (specifically the Regency of the Peshwa) [c3]; and the Treaty of Seringapatam (1792) was signed by Tipu Sultan after the Third Anglo-Mysore War [c2][t2][t3].

Sources

1. [1] https://www.britannica.com/topic/Treaty-of-Mangalore
2. [2] Rajiv Ahir. A Brief History of Modern India (2019 ed.). SPECTRUM. > Chapter 5: Expansion and Consolidation of British Power in India > The Treaty of Allahabad > p. 92
3. [3] https://en.wikipedia.org/wiki/Treaty_of_Allahabad
4. [4] Rajiv Ahir. A Brief History of Modern India (2019 ed.). SPECTRUM. > Chapter 5: Expansion and Consolidation of British Power in India > Course of War > p. 103
5. [5] Rajiv Ahir. A Brief History of Modern India (2019 ed.). SPECTRUM. > Chapter 5: Expansion and Consolidation of British Power in India > Background > p. 98
6. [6] https://sde.uoc.ac.in/sites/default/files/sde_videos/MODERN%20INDIAN%20HISTORY%201857%20to%20present.pdf
7. [7] https://fmuniversity.nic.in/getdata?dir=deptnotice&rid=notice1956_27120251737956629294.pdf