I have a question on the HDFC screenshots given for 20 depth
In the given example of HDFC Market Depth, total buyers 269,171 and total sellers 948103.
However, the 20 depth shows around 6000 buyers and 10,000 sellers. There is a huge difference compared to the total. It means the 20 depth shows only 2% of volume.
Where are the other bids and what could be the motivation for keeping the prices for those bids below/beyond the current prices?
Can there be any fraudulent interests for placing such bids at far prices? If yes, what could they be?