Respuesta :
It is due to the geographical location of India. It is located between the west and the East it is one of trade routes of west-east trade. Also Suez canal and other routes trading ships stops in India for rest of the long voyage. India also become the middleman of west and east in trade thus increasing the trade wealth and increase of economy due to trade.
The words that are missing are:
Gupta, China, Silk cloth from China, Increased, & banking