Debt mutual fund space is passing through testing times. IL&FS defualt, Zee scare, DHFL downgrade; debt mutual funds are in news for all the wrong reason. Naturally, many debt mutual fund investors are worried. Etmutualfunds.com caught up with Kumaresh Ramakrishnan, head-fixed income, DHFL Pramerica Mutual Fund, to find out what is in store for debt mutual fund investors. Edited interview.