KARACHI - Karachi Blues first innings crumbled and was tottering at 136 for eight after PIA had posted huge 450 runs total in its first knock at the end of second days play in the fourth round of Quad-e-Azam Trophy Division I match here at the National Stadium on Wednesday. PIA resuming their first innings at overnight total of 285 for five added 165 more runs for the loss of remaining five wickets. The highlight of PIA innings was Sarfaraz Ahmed's 131 laced with 22 fours to boost his team's total. Karachi Blues bowlers Tariq Hussein took 3/123 and Haris Ayaz 3/71.Home teams skipper had 2/52t. Karachi Blues first innings crumbled against the bowling of Najaf Shah who took 3/31 and Ali Imran who had 3/52. Asif Zakir provided lone resistance from Karachi. He was unbeaten 58 when stumps were drawn for the day. With two days remaining Karachi Blues is doomed to follow on. If it happens the host will find it difficult to escape its third straight defeat in the championship. Summarised scores: PIA first innings: 450 (Agha Sabir 48, Shaharyar Ghani 106*, Sarfraz Ahmed 131, Tariq Haroon 3-123, Haris Ayaz 3-71, M Sami 2-52). Karachi Blues first innings:136-8 in 55 overs (Asif Zakir 58*, Najaf Shah 3-31, Ali Imran Pasha 3-52) In division two match of the championship here at UBL ground, SNGPL are all set to beat Hyderabad which was bundled out for 97 in first knock with Bilawal Bhatti taking six for 38. Sui Northern Gas Pipeline Limited which resumed its first innings at overnight total of 174/4 declared at 461/7 with Imran Khalid scoring an unbeaten 101. Khurram Shahzad made 91 and Jahanzeb Abdullah added personal 84. Imran Chandio took three for 78. Hyderabad is doomed to defeat when resume play on Thursday for the third days of play. Brief scores: Hyderabad: 97 in 19.5 overs (Ghulam Yasin 38*, Bilawal Bhatti 6-38) and 32-3 in 9 overs. SNGPL: 461-7 in 129 overs (Khurram Shahzad 91, Imran Khalid 101*, Jahanzeb Abdullah 84, Imran Chandio 3-78).