The answer is no as we cannot challenge the constitutional validity in frot of tribunal as tribunal is not the substitute of High court as directed in L Chandra Kumar case
if there is any violation you can approach to high court or supreme courtt for that matter.
Any order of tribunal can be challenge in high court.

No, administrative tribunals cannot decide on the constitutional validity of rules or statutory orders. Such challenges must be raised before the High Court under Article 226 or the Supreme Court under Article 32.