The use of natural dyes on textiles has become a matter of importance because of the increased environmental awareness to avoid hazardous, non-biodegradable synthetic dyes (soluble and Non water soluble) and synthetic chemicals. Pre-mordanting, and post-mordanting of 10%, 30% and 50% concentration of mordants carried out using alum, stannous chloride and ferrous shulphate. Results were achieved for dyeing at 90°C for 60 min at 10%, 30% and 50% concentration of the dye on the weight of fabric using pre-and post-mordant dyeing techniques Treated fiber showed a substantial increase in colour depth (K/S) and adequate wash, light and rubbing fastness properties without and with mordanted and dyed banana fiber.