Nalanda and Takshshila; he got the first three right but went wrong with Takshila, which was in Punjab (now in Pakistan) and not Bihar. Likewise, at a speech in the US, PM Modi spoke of the Sun Temple of Konark being 2,000 years old; but actually the famous temple is just 700 years old. Modi once also confused between Chandragupta who belonged to the Mauryan empire and Chandragupta II who lived during the Gupta empire. May be, all this is on account of information overload.