A:Once an animal has been slaughtered according to the Shari’ah method, any blood that remains on the body (on the meat) is Halaal. When cooking if this blood mixes with the gravy or water, it will remain Halaal. The blood that is Haraam in Shari’ah is flowing blood and this flowing blood has been thoroughly expelled when the animal bleeds after slaughter.(Fataawa Al Hindiyyah V1 P46).
Moulana Yusuf Laher