tender for design, survey, manufacture, supply, erection, testing and commissioning of 50 nos. of 10kwp hybrid solar photovoltaic power plants with battery backup having facility for grid connection and having provision for remote monitoring unit on turn-key basis including 5 (five) years warranty / guarantee & annual maintenance contract and survey, design, manufacture, supply, erection, testing and commissioning of solar photovoltaic water pumping systems and water purification plants for drinking water purpose including creation of water source by construction of small bore deep tubewell (sbdtw) with warranty/guarantee, annual maintenance contract and insurance coverage for 5 years on turn-key basis at st boys and girls hostel of tripura.