JUDGMENT :

R.F. Nariman, J.

1. On 11th July, 1986, the State Government, by a Government Order (G.O.), accepted the recommendations of the Government of India suggesting that tourism be declared an “industry”. The fallout of this G.O. was that this would enable those engaged in tourism promotional activities to become automatically eligible for concessions/incentives as applicable to the industrial sector from time to time. Apart from various other concessions that were granted, exemption from Building Tax levied by the Revenue Department was one such concession. It was stated in the said G.O. that action to amend the Kerala Building Tax Act, 1975 will be taken separately. The G.O. went on to state that persons eligible for such concessions will, among others, be classified hotels i.e. from 1 to 5 stars. A Committee was set up consisting of three government officers to oversee the aforesaid scheme.

2. Vide a letter dated 25th March, 1987, the Government of India approved the hotel project of the appellants, being a 55 double room 3 star hotel project to be set up in the city of Calicut.

3. Pursuant to the aforesaid G.O. dated 11th July, 1986 and the aforesaid approval, the appellants b