Concept:
The Bay of Bengal Maritime Boundary Arbitration (Bangladesh v. India) was conducted under Annex VII of the United Nations Convention on the Law of the Sea (UNCLOS). Dr. Pemmaraju Sreenivasa Rao, an eminent Indian expert in international law, served as a member of the Arbitral Tribunal. :contentReference[oaicite:0]index=0
Step 1: Identify the member of the Tribunal.
Among the given personalities, only Dr. Pemmaraju Sreenivasa Rao served as a member of the Arbitral Tribunal in the Bay of Bengal Maritime Boundary Arbitration. :contentReference[oaicite:1]index=1
Step 2: Analyse the options.
• Dalveer Bhandari -- Judge of the International Court of Justice.
• Raghunandan Swarup Pathak -- Former Judge of the International Court of Justice.
• Sir Benegal Rau -- Former Judge of the International Court of Justice.
• Dr. Pemmaraju Sreenivasa Rao -- Member of the Bay of Bengal Maritime Boundary Arbitral Tribunal.
Step 3: Final conclusion.
Hence, the correct answer is
\[
\boxed{\text{Dr. Pemmaraju Sreenivasa Rao}.}
\]