India will need around USD 4.5 trillion till 2040 for development of infrastructure sector in the country, Niti Aayog CEO Amitabh Kant said Wednesday. Kant further said that there is an urgent need to restructure entire existing public private partnership (PPP) framework as there are delays in completion of infrastructure projects due to disputes. "India needs to spend close to around USD 4.5 trillion till 2040 to develop infrastructure in order to really improve overall economic growth and community well being," he said at an event organised by Dun & Bradstreet (D&B).