Answer- C
Indian President Droupadi Murmu and her Serbian counterpart Aleksandar Vucic have agreed to set a bilateral trade target of one billion euros by the end of this decade, from the present 320 million euros.
This agreement was made by both the countries, during Indian President’s three-day State visit to Serbia from the 7th to the 9th of June 2023.
Hence, option 'C' is correct.