Rahmatganj stunned their new Dhaka oppositions with a 15th minute goal by Nigerian forward Charles Ikogho but Emeka equalised for the back and whites in the first half stoppage time.

The yellow-haired Nigerian, who also notched a treble in Mohammedan's last league match against Chittagong Mohammedan, added two more goals -- in the 57th minute and second-half injury time -- to complete the seventh hattrick of the run.

Mohammedan, who enjoyed rest in previous week's fixtures, caught Abahani atop the table with 29 points but have played one match more than their traditional rivals.

Bottom-table Rahmatganj, who crashed 7-1 to Mohammedan in the first leg with rival skipper Paul slotting six goals, have now conceded five hattricks in their 11 losses.

The others to score hattricks in the league are Muktijoddha's veteran Alfaz (v Rahmatganj), Brothers' Nigerian striker Junior (v Rahmatganj and Khulna Abahani), Abahani's national forward Emily (v Rahmatganj).

However, the old-Dhaka outfit -- now on nine points after 16 games -- showed much better form than their last week's 7-0 demolition at the hands of Abahani or the first-leg humiliation to Mohammedan.

After Emeka put an early chance wide, a harmless looking cross from captain and fullback Jahangir following a quickly taken freekick caught the Mohammedan defenders napping. Despite having three men in front, the Nigerian used his speed to slice through Biplab and Ariful before drilling in a low drive inside from the box, giving goalkeeper Himel no chance.

Ikogho got two more chances inside the half hour but showed poor control. However, the pressure unsettled the nerves of the Mohammedan backline, which almost gave away a second goal in the 35th minute but thankfully, Peter Odafe's header to clear a long cross by Jahangir ran inches wide of the upright after sending Himel the wrong way.

The wake up call inspired black and whites and it could have been 1-1 two minutes later but Paul failed to reach a low cross by Emeka who snatched the ball from Rahmatganj's on-loan-from-Mohammedan defender Rony.

Paul squandered a sitter in the 43rd minute when he controlled a freekick by fellow Nigerian midfielder Divine with a header but screwed the shot over from handshaking distance.

The Mohammedan tent was finally relieved seconds after the regulation 45 minutes when Emeka leaped high at the far post to head home leftback Kamal's cross.

Rahmatganj escaped narrowly during a corner five minutes after resumption when Paul and Emeka's repeated efforts came off the line but the latter found the net soon.

Kamal had a hand in the second goal too and this time his long centre was sideheaded by Mithu for Emeka, unmarked at the far post, to make it 2-1 with a simple nod.

Rahmatganj created chances but did not show the urge to score level as Ikogho and Faisal put the ball wide indifferently while Rahmatganj custodian Anwarul made a superb save on a scorching drive by Mithu from the top of the box.

When all settled for the result, Emeka increased the margin in a spectacular fashion in the first minute of injury time, scoring with a backvolley that went in off Anwarul's palm after substitute Mohammed Rony cut back the ball from right with his first touch of the game.

It was Emeka's eighth league goal that put him third in the scorers' list behind Junior (14 goals) and teammate Paul (13).