DESIGN, SUPPLY, INSTALLATION, TESTING, AND COMMISSIONING OF A SEWERAGE TREATMENT PLANT (OPEN TECHNOLOGY) OF 100 MLD CAPACITY, INCLUDING PIPING, MECHANICAL, ELECTRICAL, AND INSTRUMENTATION COMPONENTS, COMPLETE WITH OPERATION AND MAINTENANCE FOR UP TO TEN YEARS AT VALAK IN NEW EAST ZONE-B(SARTHANA) OF SURAT MUNICIPAL CORPORATION.