100 crores ($156 million), 'Project Insight' will complement the world's largest biometric identity database and India's most ambitious tax overhaul as policy makers try to get more people to pay up. India will launch a new initiative next month aimed at increasing its 17 % tax - to - GDP ratio by using data from social media sites and blogs to build up a picture of residents ' spending habits , according to anonymous insiders . Project Insight , which has been seven years in the making and cost $ 156 m , will work alongside the world 's largest biometric identity database and dovetail with India 's planned tax overhaul . The big data model is similar to those used by China , Canada and Australia , and will be carried out in three phases .
India will launch a new initiative next month aimed at increasing its 17 % tax - to - GDP ratio by using data from social media sites and blogs to build up a picture of residents ' spending habits , according to anonymous insiders . Project Insight , which has been seven years in the making and cost $ 156 m , will work alongside the world 's largest biometric identity database and dovetail with India 's planned tax overhaul . The big data model is similar to those used by China , Canada and Australia , and will be carried out in three phases .