Indian Grandmasters R Praggnanandhaa and Arjun Erigaisi suffered defeats in the opening round of the Meltwater Champions Tour Finals early on Tuesday.

While the 17-year old Praggnanandhaa went down 1.5-2.5 to Shakhriyar Mamedyarov of Azerbaijan, Erigasi lost to Poland's Jan-Krzysztof Duda 0.5-2.5.