“27. Can the power conferred on Permanent Lok Adalats to adjudicate the disputes between the parties concerning public utility service up to a specific pecuniary limit, if they do not relate to any offence, as provided under Section 22C(8), be said to be unconstitutional and irrational? We think not. It is settled law that an authority empowered to adjudicate the disputes between the parties and act as a tribunal may not necessarily have all the trappings of the court. What is essential is that it must be a creature of statute and should adjudicate the dispute between the parties before it after giving reasonable opportunity to them consistent with the principles of fair play and natural justice. It is not a constitutional right of any person to have the dispute adjudicated by means of a court only. Chapter VIA has been enacted to provide for an institutional mechanism, through the establishment of Permanent Lok Adalats for settlement of disputes concerning public utility service before the matter is brought to the court and in the event of failure to reach any settlement, empowering the Permanent Lok Adalat to adjudicate such dispute if it does not relate to any offence.”