An Indian Revenue Service (IRS) officer who retired on Monday was questioned at Lalbazar on Tuesday in connection with a three-year-old corruption case, in which another IRS officer is the prime accused and accounting firm owner Govind Agarwal is a co-accused, officers at Lalbazar said.

Biswanath Jha, who retired as the principal chief commissioner of income tax (West Bengal and Sikkim region), appeared before police in the afternoon. Jha was supposed to appear before cops on November 27 but he did not turn up that day.

“He cooperated with us on Tuesday. He was questioned for about an hour. We may summon him again,” said an officer at Lalbazar.

Officers said he was asked about some documents found in Agarwal’s office in Mangoe Lane. “The documents resembled those of the IT department and have signatures that resemble those of senior IT officers. We had some queries about those documents,” the officer said.

The Telegraph tried to contact Jha but the calls went unanswered.

The police on Tuesday issued summons to an IRS officer in connection with the case, in which IRS officer Neeraj Singh is the prime accused and Agarwal a co-accused.

Agarwal was arrested on November 22.