The powers of the Authority or, as the case may be, the local authority concerned with respect to the disposal of land under sub section (1) shall be so exercised as to secure, so far as practicable, that persons who are living or carrying on business or other activities on the land shall, if they desire to obtain accommodation on land belonging to the Authority or the local authority concerned and are willing to comply with any requirements of the Authority or the local authority concerned as to its development and use, have an opportunity to obtain thereon accommodation suitable to their reasonable requirements on terms settled with due regard to the price at which any such land has been acquired from them: Provided that where the Authority or the local au 753 thority concerned proposes to dispose of by sale any land without any development having been undertaken or carried out thereon, it shall offer the land in the first instance to the persons from whom it was acquired, if they desire to purchase it subject to such requirements as to its develop ment and use as the Authority or the local authority concerned may think fit to impose." Although the said section is not in terms applicable to the pre sent acquisition proceedings, we are of the view that the above provision in the Delhi Development Act contains a wholesome principle which should be followed by all Development Authorities throughout the country when they acquire large tracts of land for the purposes of land development in urban areas.