The 21-year-old left-hander bounced back from a duck in the first innings but was stuck on 99 overnight after helping his side claw its way back into contention in its Plunket Shield match against Otago at Colin Maiden Park.
Auckland made a much better fist of its second innings, reaching 188 for two by stumps, with Raval closing on his second first-class ton.
Otago claimed first-innings points, overhauling Auckland's first innings total of 229.
Greg Todd top-scored with an undefeated innings of 78 to help the visitors compile 270.
He combined with Neil Wagner (42) and Nick Beard (42) in useful partnerships.
Trailing by 41, Richard Jones and Raval made a safe start getting through to 48 before James McMillan struck, removing Jones.
Experienced medium pacer Warren McSkimming picked up his sixth wicket in the match when he claimed England international Ravi Bopara.
Auckland leads by 47 with eight second-innings wickets in hand, but earlier the home side looked like it would struggle to take the game into a third day after a dramatic collapse.
McSkimming had the ball on a string on Saturday, ripping through the top order with a fantastic opening spell.
By the time he was done he had sent five of the top six back to the sheds.
Encouraged by a lively pitch, he dropped on to a dangerous line and length and trapped Raval in front before he had registered a run, bowled Bopara and nicked out Richard Jones and Anaru Kitchen, to leave Auckland reeling at 17 for four.
He claimed his ninth five-wicket bag and 200th first-class scalp when Reece Young offered a catch and finished with the outstanding bowling analysis of five for 17 from 11 overs, including six maidens.
At 136 for nine, Auckland was on ropes but a superb counterattack by Andrew de Boorder and No 11 batsman Pieter Erasmus helped rescue the home side.
Erasmus smashed 60 from 50 deliveries, including eight fours and a six, before Otago captain Craig Cumming bowled him.
By then, the pair had added 93 in a damaging last-wicket stand and guided their side past 200.
De Boorder played a valuable hand, whacking an undefeated 77 which included 11 fours and a six.
Having dominated for most of the first day, Otago suddenly found itself on the back foot, slumping to 49 for five.
Leighton Morgan and Shaun Haig both edged deliveries through to the keeper.
Neil Broom and Craig Cumming got starts but could not go on with it and Derek de Boorder could not emulate his brother's feat, nicking out for a two-ball duck.
Todd was the only specialist batsmen remaining when stumps were drawn with Otago 100 for six.
• At the Basin Reserve, a remarkable ninth-wicket partnership has left Wellington in control of its match against Central Districts, NZPA reports.
Career-best scores by Luke Woodcock (220 not out) and Ili Tugaga (103) lifted Wellington to an impressive 440 for nine declared in its first innings.
Central Districts responded by reaching stumps on 136 for two.
Woodcock and 19-year-old Tugaga shared the second-highest stand for the ninth wicket at provincial level in this country, behind the 239 by Harry Cave and Ian Leggat for Central Districts against Otago in 1952-53.
• In Hamilton, Canterbury reached stumps yesterday on 220 for four, already 15 runs ahead of Plunket Shield leader Northern Districts with Johann Myburgh well set on 102 not out.
