Requirements of setting up a HFT desk

Say I want to open a High Frequency Trading desk in India, what would be an approximate total cost in deploying such a algorithmic trading desk. What would be my margin requirement capital, memberships, registrations, trading platform cost, hardware, software, network lines etc.? All cost minus the teams and skills.

Very interesting course "Getting Started with Algo Trading", makes you feel ambitious after completing. Asking for academic purposes only :P