Made by director Wang Xiaoshuai, the film was chosen from among 13 films competing from 12 Asian countries for telling a human story in the backdrop of the cultural revolution in China.
Xiaoshuai was not present to collect the award at the closing ceremony.
The Network for the Promotion of Asian Cinema (NETPAC) Award is given at select international film festivals to promote Asian cinema by spotlighting exceptional films and discovering new talent.
West Bengal Chief Minister Mamata Banerjee described the festival as a memorable one which created a new record in footfalls.
Organised by the Information and Cultural Affairs Department of the West Bengal government, the 18th edition of the festival screened 189 films from 60 countries in 40 languages at twelve venues across the metropolis.
For eight days, the 'city of joy' went into a 'filmi' mood as the KIFF theme song sung by Nachiketa Chakraborty played at major traffic intersections inviting all to be a part of the annual festival.
A tent inside the premises of the Nandan complex gave Kolkatans a feel of how silent films were screened a century ago and created the maximum buzz at the carnival this year. (MORE)