Here you can see sector-wise summary of all Futures F&O data:

the %chg data (in bar chart) is computed as a simple %average of that F&O parameter across all the stocks in that sector

the value data (in pie chart) is computed as aggregate sum total of value in a common base (i.e in INR terms )

  • Price Gainers / Losers 
  • Open Interest Rise/Falls 
  • Volume Spikes, Most Actives 
  • Rollovers
  • Basis (premium/discounts)
  • Delivery % chgs
  • IVs

Click on any Bar of a sector to drill down into detailed constituents of that sector. 
And then click Back button to get back to original summary