Xiaomi India — Redmi Account locked

My account is locked.I used only once mi cloud services.My current email id is linked with it.I have account number but I don't remember password.Before starting the device it is asking for password to "activate".I have inserted sim also in redmi but I am not able to see imei number also as screen is locked for activation.I didn't get any mail regarding password at that time, I don't know how mi cloud account created.I just opened once.I dnt remember whether I gave password or mi cloud created password automatically.please help me because of the I am not able to use redmi mobile.