Three other candidates named Dhinakaran are reportedly contesting along with AIADMK Amma candidate and AIADMK deputy general secretary TTV Dhinakaran at RK Nagar constituency. According to reports, a candidate named Madhusoodanan, apart from AIADMK Puratchi Thalaivi Amma’s E Madhusoodanan, is also contesting the by-poll, scheduled on April 12.