The Election Commission Saturday reduced the 48-hour campaign ban imposed on Assam minister and BJP leader Himanta Biswa Sarma to 24 hours after he tendered an "unconditional apology" and assured the poll panel that he will abide by the provisions of the model code. The BJP leader now can start campaigning from the evening. He was on Friday initially barred from campaigning-related activities till April 4 for allegedly making threatening remarks against Bodoland People's Front (BPF) chief Hagrama Mohilary.