₹ 5 L Office Space for sale in Sector Sigma-4 ₹ 5 L Project Stellar Sigma Area 128 SqFeet Rate ₹3,906/SqFeet Office Space : Spread Over More Than 4 Acres In The Sigma IV Sector Of Greater Noida, The Apartments Are Ideally Located In A Fully Developed And Inhabited Area. Located On A 3 - Side Open Plot, The Apartments Face A Park And A Green Belt Along Two Of Its Edges.