On Saturday afternoon, Raval and fellow opener Rob Nicol had negotiated a tricky 10-over period to see their side through to stumps unscathed.
Also contributing strongly to Auckland's fourth innings chase was No 3 batsman Carl Cachopa who produced a handy 52 before falling to Graeme Aldridge.
Aldridge captured the final three wickets in Auckland's first innings to claim a five-wicket bag. At the time, and after Northern Districts made a solid start to their second innings, the hosts appeared to have a chance of victory.
But once Daniel Flynn fell with the score on 90, the Knights lost regular wickets to leave their bowlers with plenty of work to do yesterday.
Northern Knights opener Anton Devcich top-scored with 64 in the second innings with only Bharat Popli (43) and BJ Watling (45) offering resistance in the middle order.