COLOMBO (AFP) - Shahid Afridi shone with bat and ball on his debut as Pakistan's Twenty20 captain to steer the world champions to an emphatic 52-run win over Sri Lanka here on Wednesday. Afridi smashed 50 off 37 balls in Pakistan's 172-5, and then claimed 1-21 in four economical overs and effected a run out with a direct throw as Sri Lanka were shot out for 120 with 11 balls to spare. A sell-out crowd of 35,000 at the overflowing Premadasa stadium watched the first T20 match between the two teams since the World Twenty20 final in England in June, when Pakistan beat Sri Lanka by eight wickets. The result was the same as seamer Rana Naved and off-spinner Saeed Ajmal picked up three wickets each to stun the hosts. Sri Lanka lost wickets at regular intervals with skipper Kumar Sangakkara the only batsman to offer resistance against the fired-up Pakistanis with 38 off 31 balls. Afridi, who was man of the match in both the semi-final and final at the Worlds, once again dominated the battle to help Pakistan end an otherwise dismal tour of Sri Lanka on a winning note. Pakistan had lost the preceding Test series 2-0 and conceded the one-dayers by a 2-3 margin during the six-week tour. Afridi hit two sixes and four boundaries after taking over the Twenty20 team from Test and one-day skipper Younis Khan, who has retired from the shortest format of the game. Pakistan, who elected to bat after winning the toss, lost a wicket off the first ball when Kamran Akmal was bowled by Nuwan Kulasekara after attempting a big heave. The other opener, Imran Nazir, cracked five fours and a six in his 40 off 28 balls to boost the total as Pakistan moved to 59-3 by the eighth over. Teenager Umar Akmal, who hit a 20-ball 30, put on 66 for the fourth wicket with Afridi. Abdul Razzaq and Misbah-ul Haq added a quickfire 33 as Pakistan plundered 47 runs in the last five overs to leave Sri Lanka facing a daunting target of 8.7 runs an over. SCOREBOARD PAKISTAN: Kamran Akmal b Kulasekara 0 Imran Nazir c Malinga b Thushara 40 Shoaib Malik b Malinga 14 Shahid Afridi c Kulasekara b Thushara 50 Umar Akmal c Sangakkara b Mathews 30 Abdul Razzaq not out 25 Misbah-ul Haq not out 5 EXTRAS: (b4, lb2, w2) 8 TOTAL: (for 5 wkts, 20 overs) 172 Did not bat: Rana Naved, Mohammad Aamer, Rao Iftikhar, Saeed Ajmal. Fall of wickets: 1-0 (Kamran Akmal), 2-35 (Malik), 3-59 (Nazir), 4-125 (Umar Akmal), 5-139 (Afridi). BOWLING: Kulasekara 4-0-37-1 Thushara 4-0-37-2 Malinga 4-0-28-1 (w1) Muralitharan 4-0-30-0 (w1) Mathews 3-0-25-1 Jayasuriya 1-0-9-0 SRI LANKA: M. Udawatte lbw b Naved 11 S. Jayasuriya c Umar Akmal b Aamer 23 M. Jayawardene c Razzaq b Iftikhar 12 K. Sangakkara b Ajmal 38 C. Kapugedera c Naved b Afridi 10 A. Mathews run out 9 T. Kandamby c Nazir b Ajmal 2 N. Kulasekara b Naved 1 M. Muralitharan c Umar Akmal b Ajmal 1 T. Thushara b Naved 3 L. Malinga not out 0 EXTRAS: (lb6, w3, nb1) 10 TOTAL: (all out, 18.1 overs) 120 Fall of wickets: 1-39 (Udawatte), 2-39 (Jayasuriya), 3-71 (Jayawardene), 4-100 (Sangakkara), 5-106 (Kapugedera), 6-115 (Mathews), 7-115 (Kandamby), 8-117 (Kulasekara), 9-119 (Muralitharan), 10-120 (Thushara). BOWLING: Aamer 3-0-22-1 (w1) Naved 3.1-0-19-3 (nb1) Iftikhar 4-0-34-1 Ajmal 4-0-18-3 Afridi 4-0-21-1 (w2) Pakistan won by 52 runs.Toss: Pakistan Umpires: Asoka de Silva (SRI) and Tyron Wijewardene (SRI)TV umpire: Gamini Silva (SRI)Match referee: Alan Hurst (AUS).