Chandigarh, Aug 11 (Reporter) A leader of Bharatiya Janata Party has been booked by Ludhiana Police in Punjab for threatening a Sikh preacher over phone, an official said on Sunday. Sikh preacher Harpreet Sukhu had complained to police alleging that BJP leader Gurvinder Singh Prinkal made a WhatsApp call to him and allegedly abused and threatened him. According to police sources, social media accounts of Prinkal were being looked into and an investigation was under way...////...