The right-handed Azhar, playing in his 50th Test, has faced 268 balls in six hours at the crease and counted 14 fours, while the left-handed Sami Aslam struck nine fours in an innings spanning 212 balls and just over 43/4 hours.
Neither batsman suffered much alarm during the first session as the West Indies bowlers failed to produce anything threatening with the pink ball in only the second ever day/night Test.
In fact, their best chance of Sami Aslam b Chase 90 Azhar Ali not out 146 Asad Shafiq not out 33 Extras (b1, lb2, w1, nb6) 10 Total (1 wkt, 90 overs) 279
Babar Azam, *Misbah-ul-Haq, +Sarfraz Ahmed, Mohammad Nawaz, Wahab Riaz, Yasir Shah, Mohammad Amir, Sohail Khan. 1-215 (Sami Aslam).
the session came when Azhar slashed pacer Miguel Cummins in the air through gully, where
Gabriel 14-2-55-0 (nb6), Cummins 16-2-62-0 (w1), Holder 15-4-30-0, Brathwaite 8-2-21-0, Bishoo 16-3-45-0, Chase 21-2-63-1. WEST INDIES - Jason Holder (captain), Kraigg Brathwaite, Leon Johnson, Darren Bravo, Marlon Samuels, Jermaine Blackwood, Roston Chase, Shane Dowrich, Devendra Bishoo, Miguel Cummins, Shannon Gabriel. Toss: Pakistan.
R Illingworth, P Reiffel; TV - I Gould. Play starts at 6:30 a.m. (Ja time) each day.
Leon Johnson was late in responding, as the ball raced to the boundary.
Sami Aslam, opting for the sheet-anchor role, registered his first boundary after 64 deliveries when he came down to part-time off-spinner Kraigg Brathwaite and struck him to the wide mid-on boundary.
He followed up with another straight hit for four off the very next delivery.
At the break, he was unbeaten on 36, with Azhar on 39, and it was the junior partner who pushed on after the break to reach his half-century first with a cut to the point boundary off Chase, half-hour after the resumption.
Azhar, meanwhile, survived a review for leg before wicket off seamer and captain Jason Holder in the second over after lunch, with television replays showing the delivery missing leg.
However, he soon settled to raise his half-century by punching pacer Miguel Cummins to extra cover for a couple about 45 minutes after the interval.
Opener Azhar Ali ... finished the day unbeaten on 146.