Chowrasia, tied 13th at the end of the third round, finished with a round of two-under 70 and a total of seven-under 281 in tied 17th place.
On a crowded leaderboard, Chowrasia was just one shot behind the bunch of eight players in tied ninth place at eight-under.
At the top, Jamie Donaldson collected his second European Tour title in dramatic fashion, after seeing Justin Rose hold the lead in second and third rounds.
Donaldson, who already has a berth into the Masters after being in top-50 at the end of 2012, went two clear with five birdies in his first 17 holes, but made a mess of the par five last and bogeyed.
That bogey meant overnight leader Rose and Dane Thorbj