The opposition front comprising 26 parties has a new name: INDIA, which stands for Indian National Developmental Inclusive Alliance. All 26 parties have mutually agreed to this new name for one of the largest opposition fronts since independence. What are the top challenges for the newly formed alliance that aims to take on the NDA - which has grown from 24-party alliance under Atal Bihari Vajpayee leadership into a 39-party coalition under Prime Minister Narendra Modi. Seat-sharing negotiations are likely to be tough, especially in states like Bihar and Maharashtra. What are the big challenges for the NDA?