Allari Naresh’s suspense thriller “12A Railway Colony” releases on November 21, directed and edited by Nani Kasaragadda from a story by Dr. Anil Vishwanath of “Polimera” fame. The film has secured a U/A certificate with a 125-minute runtime. With strong promotions and Kamakshi Bhaskarla as the female lead, the thriller has solid commercial potential.