Riding on a brilliant double century by Kumara Sangakkara, hosts Sri Lanka won the first cricket Test match against Pakistan at Galle on Sunday.Spinner Rangana Herath got six wickets on the fifth day pitch and dismissed Pakistan for a paltry 180 to leave Sri Lanka a target of 99 in 21 overs. Sri Lanka reached the target in the 17th over.The last Test of the two match series will be played at Hambantota from Thursday. The Scores :Pakistan: 451 and 180.Sri Lanka: 533 for 9 declared and 99 for 3.