Indian companies are rushing to raise short-term debt after the central bank's measures to support the rupee triggered a sharp fall in borrowing costs, four merchant bankers said.Companies, led by non-banking financial firms, are raising more than 310 billion rupees ($3.24 billion) through up to five-year bonds this week, the bankers said.

NABARD, another state-run financial institution, raised funds for three years at 7.34% after ‌cancelling a similar issue in May where rates could have touched nearly 8%.Other major non-bank lenders lining up debt sales include Bajaj Finance, Muthoot Finance, Bajaj ⁠Housing Finance and L&T Finance, with planned issuances of 85 billion rupees, 27.5 billion rupees, 20 billion rupees and 15 billion rupees, respectively.Despite the recent rally ​in bonds, investor appetite remains strong on expectations of further gains.

Investors with a more than 18-month investment horizon are looking at corporate bond funds that present an attractive investment opportunity from a relative risk-reward perspective, said Puneet Pal, head of fixed income at PGIM India Asset Management.