It doesn’t matter whether you are from an IIT or NIT until you have an excellent academic profile with high CGPA and great research papers, projects and internships. . Now as for scholarships, yes there are scholarships that are purely based on merit. However, not all scholarships are just for meritorious students. In fact it is just a myth that scholarships go to only the merit students. There are many types of scholarships and merit scholarships is just one among them.