India Inc raised $1.69 billion from overseas markets in March 2017, up 11.6 per cent from a year ago.Domestic firms had borrowed $1.52 billion through external commercial borrowing (ECB) in March 2016.An additional $1.65 billion was mopped up through rupee-denominated bonds (RDBs), an instrument permitted by the RBI last year for companies to float such bonds overseas only to raise funds.The data are not comparable to RDB mop-up.Prominent borrowers that tapped the RDB route included HDFC ($758.99 million) for on-lending, Praxair India ($364.50 million) for general corporate purpose and Sembcorp Gayatri Power ($523.80 million) for refinancing of rupee loans.