To get admission in CS . how much advanced rank required? And state board marks required?

Here's the data for open category: Rank IIT OPC 1 Indian Institute of Technology Bombay 59, 2 Indian Institute of Technology Delhi 102, 3 Indian Institute of Technology Madras 186, 4 Indian Institute of Technology Kanpur 207, 5 Indian Institute of Technology Kharagpur 300, 6 Indian Institute of