This Diwali, as thousands of devotees gathered to celebrate the Festival of Lights, Sierra 13 Security Services proudly partnered with three major Sikh Gurdwaras in Edmonton — Singh Sabha Gurdwara, Dukh Nivaran Sahib Gurdwara, and Ramgarhia Gurdwara — to provide complete traffic management and event security services.   Diwali is one of the busiest times of the year for…