Raj didn’t understand Sheldon’s retort and asked: “Can you say that in English? I actually, I never learned Hindi.”
However, on more than one occasion before and after this remark, Raj’s ability to understand Hindi is referenced.
Case in point, when he and Howard (Simon Helberg) watch cricket in season 11, episode seven.
In the episode, titled The Geology Methodology, they are joined by Raj’s romantic interest Ruchi (Swati Kapila).
source: express.co.uk