An FIR has been registered against actor Kangana Ranaut in Mumbai on Tuesday following a complaint by members of the Sikh community for allegedly using derogatory language against them on social media, news agency PTI reported. The FIR was filed by Amarjeet Singh Sandhu, a 47-year-old Mumbai-based businessman, along with leaders of Delhi Sikh Gurdwara Management Committee (DSGMC) and Shiromani Akali Dal (SAD).