There are more problems ahead for Ashok Chavan, who resigned as chief minister of Maharashtra last week due to alleged involvement in the Adarsh housing scam. The Central Bureau of Investigation (CBI), which has launched a comprehensive inquiry into the scandal, is likely to question him. CBI sources indicated he may be questioned in connection with a letter he had cleared and signed, recommending the inclusion of civilians in the society which was originally meant for widows of Kargil war heroes and war veterans.