The respondent-landowners have not been called upon to refute or admit the allegations of concealment of facts attributed to some of them. Similarly, we have not asked the appellants to produce original records and documents to substantiate their allegation of concealment and suppression of material facts. We are conscious that entering into an arena of factual controversy at such an advanced stage of ligitation, and that too without giving adequate opportunities to the parties can be a potential threat to the cause of justice. Simultaneously, we are satisfied that the appelants' contention in this regard cannot be brushed aside lightly. Without expressing any final definitive opinion on such allegations of concealment, we are of the considered view that the appellants have discharged a prima facie burden for the limited purpose of making out a case for condonation of delay in the cases mentioned in the appended which shall be read as a part of this judgment.