Ahmed recorded figures of 7-111 as Warwicks were skittled out for 238. Tim Ambrose was top scorer with 39.
The total of 238 was enough to give Sussex a target of 503 to win. In reply,Sussex had reached 160-1 with Darren Maddy taking the wicket of Chris Nash.
In the Test match, India hammered the England bowlers to knock up a total of 664 all out At stumps,England were 24-1 with Andrew Strauss out for six.