( 1 ) IN this writ petition, the petitioners have thrown a challenge to the Lt. Governor s order of demolition and sealing of the premises dated 12th January, 1989 affirming the orders of demolition of the Appellate Tribunal dated 29-6-1988 and of Zonal Engineer (B) of the Municipal Corporation of Delhi dated 23-10-1987 as also the orders for sealing of the premises of the Appellate Tribunal dated 29th June, 1988 and of the Deputy Commissioner (L) dated 3/8th September, 1987, and have prayed for quashing of the same. They have also prayed for as writ of mandamus restraining the respondents Delhi and others. from demolishing the building on plot No. 411 1 2 2 situated in Lal Dora (Firni or extended abadi) of village Mundka. in the Union Territory of Delhi and to unseal the premises

( 2 ) THE relevant facts which emerge from the pleadings are that the petitioners have raised some construction on plot No. 411 1 2 2, Village Mundka, Delhi, which according to them, falls in Lal Dora (Firni or extended abadi) and of which they are the owners. The Municipal Corporation, Delhi having found that some construction has been raised on I he plot in dispute, initially issued a show