The jury for the junior section of the festival consisted of children from the age of nine to 17.
Kumar, who directed the Priyanka Chopra-starrer biopic of the legendary Indian boxer M.C Mary Kom, was present at the screening of his film after which children from various age groups asked him questions in an interactive session.
"The Indian Embassy took complete care of me and the Indian Ambassador Banashri Bose Harrison herself took me around to show Sweden and its islands. She organised a screening of 'Mary Kom' for her guests also, and had two dinners in my honour.
"This award is a very big achievement for us because now it will bridge the gap between Sweden and India, and we will be able to distribute our films over here," Kumar said in a statement.
"Mary Kom" will be showcased in Sweden again by the Indian Embassy at the Indian Film Festival next month.