provisions of the Indian Contract Act having been obtained by fraud, collusion, etc., or are against public policy but it is another thing to say that without questioning the validity thereof, the respondents could have maintained their writ petitions. We have notices hereinbefore that even in the writ petitions, the prayers made by the respondents were for quashing the order dated 23/08/1999 passed by the Special Land Acquisition Officer and for issuance of a direction upon him to refer the matter to the civil court. The High Court while exercising its jurisdiction under Article 226 of the Constitution, thus, could not have substituted the award passed by the Land Acquisition Officer by reason of the impugned judgment. Furthermore, the question as regards the validity of the agreements had not been raised before the High Court. As indicated hereinbefore, the Division Bench of the High Court had also rejected the contention raised on behalf of the respondents herein to the effect that the agreements did not conform to the requirements of Article 299 of the Constitution or had not been drawn up in the prescribed proforma.”