The opposition may field a joint candidate against the National Democratic Alliance's (NDA) presidential candidate Ram Nath Kovind, people familiar with the matter told news agency PTI. According to the people, former Lok Sabha Speaker Meira Kumar, Former Home Minister Sushilkumar Shinde, Bharipa Bahujan Mahasangh leader and Dr BR Ambedkar's grandson Prakash Yashwant, and retired diplomat Gopal Krishna Gandhi are some of the names the opposition is considering, PTI reported.