Decolourization of synthetic dyes like direct greenish blue, direct brilliant violet using Aspergillus niger and Phanerochaete Chrysosporium was carried out at a dye concentration of about 10mg/l. Asthana and Hawker__ampersandsignlsquo;s broth was used for decolourization study 10mg/l of two dyes were added and mixed well. After that, the flasks were inoculated with pre-grown fungal mycelial cultures. During the incubation, samples were drawn at 1, 3, 7 and 14 days and analyzed for decolourization, after centrifuging the samples at 8000-9000rpm for 15 minutes. The Supernatent was collected and absorbance was measured using Spectronic 20 at 490nm. The maximum decolourization of direct brilliant violet of about 65%,60% were achieved by Aspergillus niger and Phanerochaete Chrysosporium respectively during 14th day of incubation and the maximum decolourization of direct greenish blue about 76%,70% were achieved by Aspergillus niger and Phanerochaete Chrysosporium respectively during 14th day of incubation. The maximum percentage of degradation of direct brilliant violet was 65% and direct greenish blue was 76% obtained from Aspergillus niger. In order to treat the dyes more effectively, microorganism capable of degrading the toxic compound present in the textile dyes will be used on a large scale and will be introduced into effluent treatment plants for Bioremediation. Keywords: Fungal isolates, Synthetic dyes, Decolourization, Aspergillus niger and Phanerochaete Chrysosporium. ______________