This First Appeal, under Section 19 of the Consumer Protection Act, 1986 (for short “the Act”), has been preferred by a real estate developer, viz. M/s Vaibhav Development Corporation, a partnership firm and its partners, questioning the correctness and legality of the order, dated 19.7.2013, passed by the State Consumer Disputes Redressal Commission, Maharashtra at Mumbai (for short “the State Commission”) in Complaint Case No.CC/11/88. By the impugned order, the State Commission, while partly allowing the complaint, filed by a Co-operative Society, formed by the flat owners in the Vaishali Nagar Complex, has directed the Appellant to: (i) obtain full occupancy certificate and execute conveyance deed of land and building in favour of the Complainant Society; (ii) pay an amount of Rs.15,95,120/- with interest @ 9% per annum, in respect of excess water charges paid to the B.M.C. as they had failed to obtain occupation certificate from the local urban authorities; and (iii) pay costs of Rs.62,000/- to the Complainant Society and bear their own costs. The Appellants are obliged to comply with the said order within a period of two months, failing which they have been directed to p