NITI Aayog Vice-Chairman, Dr Arvind Panagariya has said that the Indian economy has the potential to touch 6-8 trillion USD in the next 15 years as against 2 trillion at present. Participating in an interactive program in Guwahati he asserted , though there are many challenges before the Indian economy at present, but overall the country has a great future. He said that NITI Aayog is working on towards this direction and has adopted a 15-year vision document.