'Doodle4Google' is a logo to celebrate holidays, anniversaries, lives of famous artists, pioneers and scientists.
For the Children's Day's logo, the search giant conducted an open competition for students of class 1 to 10 across the country.
This year's theme 'Unity in Diversity' saw more than 2,00,000 entries from more than 1,000 schools, Google said.
Yadav's design was chosen from 13 final entries. His design brings to the fore India's rich diversity through his drawings depicting sports, folk culture flora and fauna; agricultural practices and spices and cuisines.
The entries were judged by actor Boman Irani and political cartoonist Ajit Ninan.
"It is a great platform for youngsters in the country to showcase their talent. Over the years, the response has only grown. The number of entries has doubled to 2,00,000 and the number of cities these came from has grown to 60," Google India Managing Director Rajan Anandan said. A majority of the entries came from non-metros, he added.