Propritary trading firms in cash segment

[Prayag]

You can check this post for starters -

Prop Trading desk

For India, a way to identify this could be by using exchange reports. Typically as all Prop desks have their own broking licenses, hence you can refer to this report (Member proprietary positions & margins) on the NSE website to find segment wise list of trading members that utilize all their margins for prop activity (mainly 100% of open positions and margins only being utilized for proprietary trading purposes). This report is updated on a monthly basis.

You can also check which segments each prop desk/HFT is active in by referring to the NSE website. For example, refer to the names mentioned in this thread -

Who knows first...

HFTs would likely have their own exchange memberships so as to reduce transaction costs (as their buy-sell spread are as low as Rs. 0.10 as mentioned in this article). During the past year, many international HFT firms (Virtu Trading, XTX Securities, and Jump Trading) started operations in India and all have taken up their own exchange memberships (as mentioned in this article). Even other HFT firms that are active in India (like AlphaGrep, Tower Research, Centillion Research, Graviton Research …

For further reading, refer to these news articles. Mainly many prop deks/HFTs have become active in stocks (via bulk deals route) so that data can be used to identify such trading firms as well

HFTs fish for profits in illiquid stocks, leave market guessing

Algo trading firms rake in big bucks; Graviton top dog with Rs 3,500-cr revenue