Fair usage limit is applicable on the Unlimited Usage Plans: ADULM1024 (30GB per month), ADULM2048 (50GB per month), ADULM4096 (80GB per month), ADULQ300K (90GB in three months), ADULQ512K (90GB in three months), ADULQ750K(90GB in three months), ADULQ1024 (90GB in three months), ADULQ2048 (150GB in three months), ADULQ4096 (240GB in three months), ADULH300K (180GB in six months), ADULH512K (180GB in six months), ADULH750K (180GB in six months), ADULH1024 (180GB in six months), ADULH2048 (300GB in six months),ADULH4096 (480GB in six months), ADULA1024 (360GB in twelve months), ADULA2048 (600GB in twelve months) and ADULA4096 (960GB in twelve months). Contention ratio increases post fair usage consumption,although there is no limit on usage. This may result into speed reduction only during the peak hours. Contention Ratio: 1:10 for Bill Free plans, 1:20 for Bonus Bandwidth and Unlimited Plans. TDN reserves right to increase contention ratio upto 1:50 for Unlimited Usage Plans, if usage during the billing cycle crosses fair usage.