Both the all-rounders -- Razzaq and Rana Naved put on a 133-run partnership to take their team to a humongous target of 189 with two overs to spare, winning by six wickets.
It was a wonderful batting exhibition from both contemporaries, who matched each other stroke for stroke.
Earlier, superb half-centuries by Murray Goodwin and Damien Martyn steered ICL World to a competitive total of 188-3 in their alloted 20 overs .
After Pakistani captain Inzamam-ul-Haq put ICL World in to bat, taking the due factor into consideration, the World openers got off to a confident start with Goodwin and Martyn playing some delightful strokes to take the score to 40 for no loss at the end of the fourth over.
More dominant of the two -- Goodwin was firing all cylinders and brought up his fifty in the seventh over itself.
It was debutant Riaz Afridi who gave Pakistan their breakthrough by castling dangerous Goodwin for a brilliant knock of 31-ball 52, studded with eight fours and a six. This also brought an end to a fine 90-run opening partnership.
But at the half-way mark, ICL World were placed comfortably at 94-1, looking set for a massive total.
The crucial middle overs turned to be a fascinating contest between the bat and the ball with Martyn and Andre Adams countering some brilliant reverse swing bowling from Riaz Afridi and Shahid Nazir.
It was Nazir who managed to get the upper hand as he sent back Adams with a perfect reverse swinging yorker.
However, Martyn, at the other end was playing the anchor sheath role and in the death overs, he along with Lance Klusener piled up runs for the team.
Klusener got into the act right away, playing a lovely cameo off 24 runs off just 12 balls, before he was scalped by Rana Naved in the 17th over.
Paul Nixon did his part by contributing a fine 17 runs off 13 balls to power the World to 188-3.
It was Martyn though, who stole the show with his 64 (49 b, 5X4, 1X6).
World series-Points table
The Pakistani reply got off to a blistering start, racing to 25 in the second over before Adams struck back for the World side castling the Imran Nazir for 15.
Gillespie's struck again to send back the other opener Imran Farhat to reduce the Pakistan to 38-2 in the third over, putting the World side on top.
However, Pakistani batsmen did not get affected by the loss of early wickets as Rana Naved and Razzaq got into the act right away, taking the score to 62-2 at the end of 5th over with more than 50 runs coming off boundaries.
The duo continued to attack and in the process brought up fifty partnership off just 25 balls in only the sixth over. The Pakistani hundred came about in only the 8th over with both batsmen looking in ominous touch.
The half-way mark of the Pakistani innings had them handsomely placed at 124-2, needing only 65 runs off 60 balls.
After Razzaq reached his sixth fifty of the ICL, it was Rana Naved's turn to score his half-century and he did it in style by hitting a massive six over mid wicket.
The wonderful mammoth partnership worth 133 runs came to an end with Rana's wicket, out for a brilliant innings of 74 off 38 balls, including 10 fours and 3 sixes.
In the end a superb unbeaten knock of 73 runs off 45 balls laced with nine fours and a six by Abdul Razzaq powered the Pakistani side home to a robust win.