gsoc procedure and proposal

dear sir/maam
my name is hasir abdulla, am computer science 3rd year student.first time am applying for gsoc and also very intrested in your projects. previosly i use to work with raspberry pi and done many project with it, also worked with other boards so i have knowledge of embed python and c.
So i need to get an idea of this program and the procedure for proposal also need guide for ma project