Answer:
1)When the colonial government prevented people from entering the reserved forests, the iron smelters could not find wood for charcoal to light the furnace. Ironsmiths in India began using the imported iron to manufacture utensils and implements. This lowered the demand for iron produced by local iron smelters.
2) By the late 19th century iron and steel were being imported from Britain. Ironsmiths in India began using the imported iron to manufacture utensils and implements. This inevitably lowered the demand for iron produced by local smelters. All these reasons caused the decline of the Indian iron smelting industry