Pattnaik was the sole representative of India at the 12th International Sand art competition 2013 which was held from July 10 to 18.
The theme of the competition in St Petersburg was "International Fairy Tales".
Pattnaik created a 7-feet high sand sculpture of Ganesh sitting on Kailash Mountain with Lord Siva and Parvati.
"We always listen Lord Ganesh's stories from our grandmother in childhood. So I decided to create a sand sculpture on Lord Ganesh's story", Sudarsan said.
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Consul General of India Vishvas Sapkal was present on the occasion. After Sudarsan got the top award, Sapkal congratulated him.
Italy got the silver medal and the US got the bronze medal in the competition.
Twenty sculptors from around the World represented their respective countries in the competition. They included sand artists from the US, Canada, Holland, Belgium, Bulgaria, Italy, Austria and Russia.
Pattnaik has participated in more than 54 international sand sculpture championships across the globe and has won many prizes for his country.