As soon as the House met again at 4 PM, Mukherjee rose to express his "regret" saying he owed an "apology" to the House.
"I tried to intervene in a matter raised by Yashwant Sinha, but unfortunate incident took place...I lost temper. It was not appropriate for me," he said amid thumping of desks by BJP members.
Earlier in the day, an angry remark by Mukherjee in the midst of uproar over a spate of issues, including demand for jute bags for wheat, led to adjournment of the Lok Sabha for over an hour.