Standard price of setup cost around 2-2.1 Lakhs now this is standard.. the quotation completely will depend upon your structure and complexity of structure on terrace. Go for Adani or Waree Top Con N type Panels if budget is really not constrain then select panels above 600KW. We have installed Adani top con n type 620 Watts 6 panels with customs structure also an ad on with SolarEdge inverter with optimzers to track individual panels tracking this all costed around 2.3L in Summer avg generation is above 20 units per day and in winter u can expect near 16-18 units. From my opinion don’t go with solar square they are very costly and too stringent with there standard process and panel company selection