JUDGMENT

G. N. RAY, J.:—Legality and validity of the policy decision of Government of India dated January 20, 1990, containing the guidelines regarding the procedure for allotment of land by the Delhi Development Authority (hereinafter referred to as DDA) to different Co-operative Group Housing Societies are in dispute in this Special Leave Petition No. 10857 of 1991 arising out of the Judgment dated May 10, 1991 of the Division Bench of the Delhi High Court in C.W.P. No. 285 of 1990 (reported in AIR 1991 Delhi 217) (Kaveri Co-operative Group Housing Society Ltd. v. Union of India) and several applications for intervention and for adding and impleading of parties to the special leave petition. The backdrop of relevant events in connection with the issuance of the aforesaid guidelines by the Central Government have been succinctly indicated in the impugned judgment of the Delhi High Court and may be stated hereunder :

2. Prior to July 16, 1983, for some period of time the Registrar, Co-operative Societies, Delhi Administration, (hereinafter referred to as Registrar) was not registering any Group Housing Society under the provisions of Delhi Co-operative Societies Act, 1972, presumabl