South Zone continued to be second on the points table after their drawn game against Central Zone in Fatullah. South Zone have 33 points, the same as East Zone, who are on top.
Batting first, Central Zone were bowled out for 413 runs with Rony Talukdar (106) getting to his seventh first-class hundred before he was caught behind off Mustafizur Rahman. His dismissal, however, sparked a collapse that saw them lurch to 262 for 8, before a 137-run ninth-wicket stand between Mosharraf Hossain (89) and Elias Sunny (58*) helped them towards 400.
In reply, South Zone saw centuries from Shahriar Nafees, Mosaddek Hossain and Sohag Gazi to post 541. Nafees made 161 with 19 fours and a six while Mosaddek struck ten fours and seven sixes during his 153. Gazi, coming in at No. 8, struck a brisk 106 off 108.
Mosharraf backed his 89 with 7 for 173, using his left-arm spin, and was later named Man of the Match. When Mosharraf dismissed Abdur Razzak, he became the fifth Bangladeshi bowler to take 300 first-class wickets. The others are Enamul Haque jnr, Elias, Mohammad Sharif and Razzak.
South Zone's 128-run lead meant that Central Zone had to bat out the last four hours on the fourth day to safety. They crawled to 69 for 4 in 56 overs. Razzak took 3 for 20 while Mustafizur took the other wicket.
Rain marred the fourth day's play as the match between East Zone and North Zone ended in a draw in Chittagong.
Batting first, East Zone racked up 473 thanks to Alok Kapali's 228 and Asif Ahmed's 103. It was Kapali's second double-hundred in first-class cricket, having batted for more than eight hours.
North Zone opener Junaid Siddique nearly followed-up with a double-century of his own but fell seven runs short. North Zone were bowled out for 384 with no other batsman scoring more than 35. Junaid struck 17 fours and two sixes during his near eight-hour effort.
Play began only at 1.45pm on the fourth day and East Zone reached 106 for 4 as the game petered out to a draw.