New Delhi, Aug. 12 -- Former Chief Justice of India DY Chandrachud has taken on a new international legal role after being appointed by Russia as its arbitrator in an investment treaty dispute involving Ukraine's state-owned Oschadbank, according to a report by Global Arbitration Review.

The dispute is being heard by a three-member tribunal constituted under the 1998 bilateral investment treaty between Russia and Ukraine. Costa Rican arbitrator and former trade minister Dyala Jimenez will serve as the tribunal's president, while Greek arbitrator and National University of Singapore professor Stavros Brekoulakis has been appointed by Oschadbank.

Oschadbank has brought the investment claim over assets and business operations in the Donets...