Mamangam which was slated to release on November 21 released on December 12. But for reasons unknown, the big budget period drama of Mammootty has been facing brutal trolls and negative publicity on social platforms. The producer of the film Venu Kunnapilly had even raised the issue in the Producers' Council and lamented that no other film industry would spew so much venom towards an art form. He said that the hate campaign began days before release and there were fake reviews even before release. He said that when such huge amount of money is invested in a small industry like Mollywood, people should support it so that others would be encouraged to invest in the industry.