Are there any videos of him speaking German or French? Two ex-presidents of two different small European countries had ~5 languages listed in wikipedia, yet in reality they were speaking native + some euro-english only. Now I'm very skeptical about multilingual politicians.
PM Narasimha Rao would speak in the local language of the states he visited during his tenure in politics. After his premiership, wrote a fiction novel indirectly sharing his experience in politics. His skill in language translation helped in climbing the political ladder because so few national politicians could speak more than their regional language.
It's quite amazing that he learned COBOL and BASIC and wrote UNIX programs during his career in politics. He's credited with liberalizing industrial policies that helped Software/IT services industry dramatically grow in the following decade after his tenure.
His secretary BN Yugandhar is the father of Microsoft CEO Satya Nadella.