How foreign visitors to India used to converse with local people in the past?Historically many foreign travellers visited India in the past e.g. Megasthenes from Greece came during the period of Chandragupta Maurya, Fa-Hien from China visited during the era of Chandragupta II and Hiuen-Tsan from China during the reign of Harshavardhana. Other notable visitors were Al-berun from Persia, Marco Polo and Ibn Batuta etc.
Nowadays, English has almost become an universal language and an international traveller can manage with the knowledge of English language in most parts of the world. However, in the past there was no such universal language.
How foreign visitors to India used to converse with local people in the past?