Mr. Justice B.S. Yadav, Member—This Revision Petition is against the order dated 25th June, 1994 passed by the State Commission, Madhya Pradesh at Bhopal by which it upheld the order of the District Forum, Indore and dismissed the appeal filed by the District Manager, Indore Telephones, Indore District. There is no controversy between the parties on facts. It is an admitted case that from 1st March, 1991, the capacity of telephone exchange at Indore was increased to more than 30,000 lines though the number of actual working lines on the relevant date was less than 30,000. Prior to 1st March, 1991 the Complainant, Shri Kailashchandra Agrawal, who is the respondent herein, and who is a telephone subscriber, Indore, was charged bi-monthly rental at the rate of Rs. 200/- per month. With effect from 1st April, 1990 the Tariff of bi-monthly rental was revised in respect of telephone exchange systems. In telephone exchanges having 30,000 lines and above the bimonthly rental per telephone was fixed at Rs. 250/-. Acting upon that notification, from 1st March, 1991 from which date the capacity of telephone exchange system at Indore was enhanced the telephone bill to the complainant in r