law: 7. Salary and allowances.-
  (1) Notwithstanding anything contained in any judgment, order or decree of any court, or in any law for the time being in force, and without prejudice to the generality of the foregoing power, the Central Government may make rules to provide for the salary of the Chairperson and Member of a Tribunal and they shall be paid allowances and benefits to the extent as are admissible to a Central Government officer holding the post carrying the same pay:
  Provided that, if the Chairperson or Member takes a house on rent, he may be reimbursed a house rent higher than the house rent allowance as are admissible to a Central Government officer holding the post carrying the same pay, subject to such limitations and conditions as may be provided by rules.
  (2) Neither the salary and allowances nor the other terms and conditions of service of the Chairperson or Member of the Tribunal may be varied to his disadvantage after his appointment.