Loan from bank without security.

No bank will give you a loan without any security. Even with it, it is still very difficult to get one. They will look at your repaying capacity and unless and until you can prove that you can repay the loan they wont give you anything. Under the Jawahar Rozgar Yojna, banks HAVE TO give loans to start-ups without asking for any security, but no bank does that. They have their own justification. If you have someone to undersign then, you might have a chance. All the best.