National Highways Authority Of India [NHAI] — deplorable condition of nh 48

I am today traveling via nh 48. I am paying toll tax at all the checkpoints but my car is just not stable as roads are so bad. Why do we pay toll tax? For maintenance of this highway so that we can drive safely. It seems authorities are more interested in filling their pockets than utilizing public funds for public convenience. It is the job of government to take care of public services but no one is bothered.