Dharamshala, Sept. 7 -- After facing backlash, the Indian Institute of Technology (IIT), Mandi, has ordered an inquiry into a controversial poster displayed on its campus depicting a caste-based social hierarchy. The institute has constituted a committee to probe the matter. A row erupted on Saturday after a poster depicting caste-based social hierarchy was displayed at IIT-Mandi during an event, drawing sharp criticism on social media. The institute clarified that it had no role in the event where the poster was displayed. "A three-member committee has been constituted by the institute director to probe the matter. I am also a member of the committee, and we are scheduled to hold a meeting on Monday (September 7). We are also keen to find out why this happened on the campus." IIT-Mandi registrar Dr Kumar Sambhav Pandey said. The director was not on campus at the time and resumed office on Saturday evening. "We discussed the matter today and constituted the committee," he added. The controversy erupted over a poster titled "Bhagavad Gita - The Timeless Wisdom", which was displayed at the institute and classified society into Brahmanas, Kshatriyas, Vaishyas and Shudras. The poster was widely circulated on social media. IIT-Mandi director, Laxmidhar Behera, in an internal email to members of the institute, said he was shocked to know about the poster displayed on September 4 which had not been endorsed by the institute in any manner....