Hi Manan,
Do bear in mind that your installment for RM409k (90% loan = RM 370k) installment should me around RM1,700-1,800. A standard bank criteria will look into your loan servicing ratio 1/3 or your combine income i.e. meaning combined income with your brother should be RM 5,000-6,000. In actual fact your both income is below that range. However some bank will also take into consideration of race, occupation level and company that you working with to determine your scoring in the system. Should your scoring fall below the minimum scoring then your case will be either being reject or slash on the margin.
To over come this case, i will recommend you to bring in a guarantor be it your father or other siblings.
Regards,
Martin Lau