sorry missanonymous, you cannot come here without the NOC letter. Even if you changed the passport, and you found a job, they will identify you by your fingerprint while you are processing your RP. You even cannot come on business visa, as you still need a NOC letter. So even illegal "buying" a visa won't help you. Your friends can't sponsor you.
You have 2 options: either to convince your previous sponsor to grant you a NOC letter, or to get married and come here on your husband's sponsorship.