Despite their heavy selling in the Indian stock market, foreign portfolio investors (FPIs) have made a significant investment in Indian bonds, injecting over Rs 51,730 crore (approximately $6 billion) through the Fully Accessible Route (FAR) since January this year. Of this, as much as Rs 29,044 crore came from FPIs in the month of March, according to data from the National Securities Depository Ltd (NSDL). The bond investment was also one of the reasons for strengthening of the rupee in the last a few days.