The correct answer is Amul Girl. Eustace Fernandes was the illustrator who drew the Amul girl, the polka dotted mascot that has appeared in Amul's butter advertisements since 1966. The character was born out of the campaign built by the ad agency ASP (Advertising and Sales Promotion), later da Cunha Communications, with Sylvester daCunha as the driving force behind the witty topical taglines and Fernandes giving the girl her look. Fernandes passed away in January 2010, and his death brought renewed attention to how much the mascot owed to his art. The Amul girl campaign is one of the longest running ad campaigns in the world and is known for commenting on current events with humor.
The other options do not fit. Tom and Jerry is an American cartoon duo created by William Hanna and Joseph Barbera for MGM. The Air India Maharaja was created in 1946 by Bobby Kooka, a commercial manager at Air India, along with artist Umesh Rao. Snow White is a Walt Disney animated character from the 1937 film Snow White and the Seven Dwarfs. None of these were the work of Eustace Fernandes.